Joren M Dorresteijn, Robin Conradi, Laurens D B Mandemaker, Kordula Schnabl, Virginie Cirriez, Alexandre Welle, Daniel Curulla-Ferré, Florian Meirer, Eelco T C Vogt, Bert M Weckhuysen
{"title":"Chitosan microsphere-supported catalysts: design, synthesis and optimization for ethylene polymerization.","authors":"Joren M Dorresteijn, Robin Conradi, Laurens D B Mandemaker, Kordula Schnabl, Virginie Cirriez, Alexandre Welle, Daniel Curulla-Ferré, Florian Meirer, Eelco T C Vogt, Bert M Weckhuysen","doi":"10.1039/d4ma00893f","DOIUrl":"https://doi.org/10.1039/d4ma00893f","url":null,"abstract":"<p><p>Polyolefins are the main building blocks for consumer products. Here, chitosan, a biopolymer that can be derived from abundant fishery waste, is shaped as a microspheroidal support using spray drying to facilitate ethylene polymerization. Definitive screening design was used to optimize synthesis steps efficiently. The generated catalysts were tested for ethylene polymerization, and the effects of MAO loading and generated porosity were assessed using a variety of micro- and spectroscopic techniques.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" ","pages":""},"PeriodicalIF":5.2,"publicationDate":"2024-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11604097/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142770394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Manasa R. Shankar, A. N. Prabhu and Tulika Srivastava
{"title":"Bismuth and tellurium co-doping: a route to improve thermoelectric efficiency in InSe polycrystals","authors":"Manasa R. Shankar, A. N. Prabhu and Tulika Srivastava","doi":"10.1039/D4MA01011F","DOIUrl":"https://doi.org/10.1039/D4MA01011F","url":null,"abstract":"<p >Indium selenide (InSe), a layered chalcogenide material, has gained substantial scientific interest as a thermoelectric material due to its intrinsic low thermal conductivity. However, its intrinsic carrier concentration is notably minimal (∼10<small><sup>14</sup></small> cm<small><sup>−3</sup></small>) due to a significant bandgap of 1.3 eV limiting its thermoelectric efficiency. Therefore, to optimize InSe-based materials for thermoelectric applications, it is essential to increase the carrier concentration through precise doping methodologies. In this study, co-doping at both the anion and cation sites of InSe was achieved by introducing Bi to the In site and Te to the Se site. The impact of this co-doping on the thermoelectric performance of InSe-based materials was thoroughly investigated. The increase in carrier concentration due to the electron-donating nature of Bi significantly enhanced the electrical transport properties and the Seebeck coefficient (<em>S</em>) experienced a minor reduction, and the incorporation of Bi atoms resulted in a substantial improvement in the power factor (PF) across the temperature range. Among all the samples studied, In<small><sub>0.96</sub></small>Bi<small><sub>0.04</sub></small>Se<small><sub>0.97</sub></small>Te<small><sub>0.03</sub></small> exhibited the highest PF throughout the temperature range. The dopants Bi/Te acted as an effective phonon scattering center, reducing lattice thermal conductivity. The synergistic effect of cation–anion co-doping resulted in a maximum <em>ZT</em> of ∼0.13 at 630 K in the In<small><sub>0.96</sub></small>Bi<small><sub>0.04</sub></small>Se<small><sub>0.97</sub></small>Te<small><sub>0.03</sub></small> sample, which is nearly 11 times higher compared to the pristine sample. Considering these findings, Bi–Te co-doped InSe emerged as a highly promising material for thermoelectric applications.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 24","pages":" 9823-9837"},"PeriodicalIF":5.2,"publicationDate":"2024-11-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ma/d4ma01011f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790326","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Correction: A perspective on contact-electro-catalysis based on frontier molecular orbitals","authors":"Ziming Wang, Xuanli Dong, Fu-Jie Lv and Wei Tang","doi":"10.1039/D4MA90138J","DOIUrl":"https://doi.org/10.1039/D4MA90138J","url":null,"abstract":"<p >Correction for ‘A perspective on contact-electro-catalysis based on frontier molecular orbitals’ by Ziming Wang <em>et al.</em>, <em>Mater. Adv.</em>, 2024, <strong>5</strong>, 6373–6377, https://doi.org/10.1039/D4MA00514G.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 24","pages":" 9862-9862"},"PeriodicalIF":5.2,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ma/d4ma90138j?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790320","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Rizky Aflaha, Chlara Naren Maharani, Linda Ardita Putri, Yuliyan Dwi Prabowo, Iman Rahman, Tarmizi Taher, Aditya Rianjanu, Roto Roto, Hutomo Suryo Wasisto and Kuwat Triyana
{"title":"A superhydrophobic and heat-resistant PAN/PSU/PTFE composite nanofiber membrane for high-efficiency PM1.0 and PM2.5 filtration","authors":"Rizky Aflaha, Chlara Naren Maharani, Linda Ardita Putri, Yuliyan Dwi Prabowo, Iman Rahman, Tarmizi Taher, Aditya Rianjanu, Roto Roto, Hutomo Suryo Wasisto and Kuwat Triyana","doi":"10.1039/D4MA00841C","DOIUrl":"https://doi.org/10.1039/D4MA00841C","url":null,"abstract":"<p >Excessive particulate matter (PM) concentrations in the air can negatively impact the environment and harm human health. Hence, this issue must be addressed immediately. In this study, we developed a filtration membrane for PM<small><sub>1.0</sub></small> and PM<small><sub>2.5</sub></small> based on polyacrylonitrile/polysulfone/polytetrafluoroethylene (PAN/PSU/PTFE) composite nanofibers using an electrospinning method. Numerous characterization studies (<em>i.e.</em>, scanning electron microscopy (SEM), water contact angle (WCA) measurement, Fourier-transform infrared (FTIR) spectroscopy, tensile strength test, and thermogravimetric analysis (TGA)) were conducted to determine the surface morphology, hydrophobicity level, chemical composition, mechanical strength, and heat resistance of nanofibers, respectively. The fabricated PAN/PSU/PTFE nanofibers possess smooth and continuous morphology with sizes ranging from 270 to 407 nm, superhydrophobic surface characteristics (WCA > 153°), and temperature stability at 300 °C. Furthermore, in terms of their performance as a PM filter, they demonstrate high filtration efficiency values of (99.2 ± 0.2)% and (99.3 ± 0.2)% for PM<small><sub>1.0</sub></small> and PM<small><sub>2.5</sub></small> with a pressure drop of (415 ± 5) Pa, resulting in quality factor (QF) values of (11.7 ± 0.6) × 10<small><sup>−3</sup></small> Pa<small><sup>−1</sup></small> and (11.9 ± 0.7) × 10<small><sup>−3</sup></small> Pa<small><sup>−1</sup></small>, respectively. In addition, the membrane still maintains its performance after 4 months. All these results indicate the high potential of the proposed PAN/PSU/PTFE nanofiber membrane as a PM filter in harsh environments.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 24","pages":" 9731-9743"},"PeriodicalIF":5.2,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ma/d4ma00841c?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790269","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tejas, A. Princy, S. Masilla Moses Kennedy, Vikash Mishra, M. I. Sayyed, Taha A. Hanafy and Sudha D. Kamath
{"title":"Structural, thermal, and optical spectroscopic studies of Sm3+-doped Ba2ZnSi2O7 phosphors for optical thermometry applications","authors":"Tejas, A. Princy, S. Masilla Moses Kennedy, Vikash Mishra, M. I. Sayyed, Taha A. Hanafy and Sudha D. Kamath","doi":"10.1039/D4MA00926F","DOIUrl":"https://doi.org/10.1039/D4MA00926F","url":null,"abstract":"<p >Samarium-doped Ba<small><sub>2</sub></small>ZnSi<small><sub>2</sub></small>O<small><sub>7</sub></small> orange red-emitting phosphors for novel applications in temperature measurement were prepared by a solid-state synthesis method. A Ba<small><sub>2</sub></small>ZnSi<small><sub>2</sub></small>O<small><sub>7</sub></small> akermanite-structured Sm<small><sup>3+</sup></small> phosphor was allocated to the <em>C</em>2/<em>c</em> space group and monoclinic system. Using FTIR, identification of different bonds with their vibrational modes has been done. Stimulated at 403 nm, the as-prepared phosphors show yellow (560 nm), orange (600 and 645 nm), and red (705 nm) emissions, which were also used to maximize the dopant concentration. Sm<small><sup>3+</sup></small> ions may be uniformly dispersed throughout the Ba<small><sub>2</sub></small>ZnSi<small><sub>2</sub></small>O<small><sub>7</sub></small> matrix, and Sm<small><sup>3+</sup></small> consists of irregular microparticles. Optical energy bandgap values for Ba<small><sub>2</sub></small>ZnSi<small><sub>2</sub></small>O<small><sub>7</sub></small> and 0.4 mol%Sm<small><sup>3+</sup></small> (∼3.33 eV and ∼3.40 eV) reveal the formation of faulty energy levels in the band gap. Sm<small><sup>3+</sup></small> quenching at an appropriate concentration of 0.4 mol%, with a critical distance of approximately 44.33 Å, and a <em>θ</em> value of 3.93, almost equal to 4, was found to be indicative of the dipole–dipole type of electric multipolar interaction. Excellent thermal stability of the PL peaks was observed in Ba<small><sub>2</sub></small>ZnSi<small><sub>2</sub></small>O<small><sub>7</sub></small>:0.4%Sm<small><sup>3+</sup></small>. A novel dual-model thermometry approach based on an adjusted Boltzmann population distribution and an exponential function would be put forward. The Ba<small><sub>2</sub></small>ZnSi<small><sub>2</sub></small>O<small><sub>7</sub></small>:Sm<small><sup>3+</sup></small> phosphor exhibited relative sensitivities of 2.02% K<small><sup>−1</sup></small> based on modified Boltzmann population distribution through the FIR strategy and temperature-dependent lifetime was also employed to calculate relative sensitivities of 3.25% K<small><sup>−1</sup></small> based on exponential function. In light of these experimental results, the produced Sm<small><sup>3+</sup></small> doped Ba<small><sub>2</sub></small>ZnSi<small><sub>2</sub></small>O<small><sub>7</sub></small> phosphors can thus be a promising choice for UV-excitable warm lighting systems and non-contact optical thermometry measurements.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 24","pages":" 9756-9773"},"PeriodicalIF":5.2,"publicationDate":"2024-11-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ma/d4ma00926f?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A novel synthesis of inorganic–organic nanohybrid based on SiW11Co@Cu–BTC/MWCNTs-COOH for electrocatalytic oxidation of dopamine†","authors":"Zahra Sadeghi and Somayeh Dianat","doi":"10.1039/D4MA00940A","DOIUrl":"https://doi.org/10.1039/D4MA00940A","url":null,"abstract":"<p >Polyoxometalate (POM)-based inorganic–organic hybrid compounds exhibit a remarkable range of properties. These compounds are distinguished by their strong acidity, oxygen-rich surfaces, and excellent redox capabilities. Importantly, they do not share the typical limitations of POMs, such as low specific surface area and instability in aqueous solutions. In this paper, we present the design of a novel modified glassy carbon electrode (GCE) using a tri-component nanocomposite consisting of SiW<small><sub>11</sub></small>O<small><sub>39</sub></small>Co(H<small><sub>2</sub></small>O) (SiW<small><sub>11</sub></small>Co), Cu–BTC (BTC is benzene-1,3,5-tricarboxylate), and carboxyl functionalized multi-walled carbon nanotubes (MWCNTs-COOH) fabricated through a drop-casting method followed by electrodeposition reduction. The resulting hybrid nanocomposite (SiW<small><sub>11</sub></small>Co@Cu–BTC/MWCNTs-COOH) was characterized using Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), and transmission electron microscopy (TEM). Additionally, elemental composition was analyzed <em>via</em> inductively coupled plasma-optical emission spectrometry (ICP-OES), while surface area and pore volume distribution were measured using Brunauer–Emmett–Teller (BET) analysis. The morphology, electrochemical properties, and electrocatalytic activity of the SiW<small><sub>11</sub></small>Co@Cu–BTC/MWCNTs-COOH/GCE were evaluated through field emission scanning electron microscopy/energy-dispersive X-ray analysis (FE-SEM/EDX), voltammetry, and amperometry techniques. Under optimized conditions, the sensor exhibited outstanding electrocatalytic activity toward dopamine (DA), achieving two linear detection ranges of 5–80 μM and 80–600 μM, with a limit of detection (LOD) of 2.35 μM (S/N = 3) using square wave voltammetry (SWV). Furthermore, the sensor exhibited high repeatability and reproducibility, ensuring consistent performance across multiple measurements. It also showed robust stability and outstanding selectivity. The sensor's analytical performance was further validated by its successful application to real samples.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 24","pages":" 9809-9822"},"PeriodicalIF":5.2,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ma/d4ma00940a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mashrafi Bin Mobarak, Fariha Chowdhury, Md. Najem Uddin, Md. Sahadat Hossain, Umme Sarmeen Akhtar, Nazmul Islam Tanvir, Md Aftab Ali Shaikh and Samina Ahmed
{"title":"Poultry waste derived in situ drug loaded nano-hydroxyapatite bio-ceramic material for osteomyelitis treatment: in vitro drug release and biocompatibility studies","authors":"Mashrafi Bin Mobarak, Fariha Chowdhury, Md. Najem Uddin, Md. Sahadat Hossain, Umme Sarmeen Akhtar, Nazmul Islam Tanvir, Md Aftab Ali Shaikh and Samina Ahmed","doi":"10.1039/D4MA00748D","DOIUrl":"https://doi.org/10.1039/D4MA00748D","url":null,"abstract":"<p >This study presents the preparation of a bone substitute material, nano-hydroxyapatite (nHAp), derived from waste chicken eggshell (WCE), with the incorporation of ciprofloxacin (CF) to harness both the beneficial properties of nHAp and the antibacterial effects of CF in treating osteomyelitis. CF was loaded <em>in situ</em> at three different concentrations: 5, 10 and 15 mg mL<small><sup>−1</sup></small>. The formation of nHAp, along with CF-loaded samples, was confirmed using XRD analysis. Functional group analysis was conducted through FTIR and Raman spectroscopic methods. FESEM analysis was employed to examine morphology and particle size, while EDX study determined elemental composition. The antibacterial activity of CF-loaded samples against <em>Escherichia coli</em> and <em>Staphylococcus aureus</em> increased with higher CF concentrations. Cytocompatibility and hemocompatibility assessments demonstrated the safety of nHAp and CF-loaded nHAp samples under physiological conditions. The bioactive nature of the samples was affirmed by the formation of an apatite layer after immersion in simulated body fluid solution (SBF) for three weeks at 37 °C. CF release kinetics was investigated at room temperature under static conditions for two weeks. The cumulative release percentage of CF decreased with increasing CF concentration, likely due to enhanced interaction between CF and nHAp molecules, as confirmed by XPS and FTIR analysis. WCE-derived nHAp proved to be a promising CF carrier for combating diseases such as osteomyelitis.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 24","pages":" 9716-9730"},"PeriodicalIF":5.2,"publicationDate":"2024-11-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ma/d4ma00748d?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790283","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Khizar Hayat Khan, Aneesa Zafar, Haroon Rashid, Iftikhar Ahmad, Gul Shahzada Khan and Hazrat Hussain
{"title":"Enhancing lithium-ion conductivity: impact of hausmannite nanofiller on PVDF–HFP/PEG blend nanocomposite polymer electrolytes","authors":"Khizar Hayat Khan, Aneesa Zafar, Haroon Rashid, Iftikhar Ahmad, Gul Shahzada Khan and Hazrat Hussain","doi":"10.1039/D4MA00694A","DOIUrl":"https://doi.org/10.1039/D4MA00694A","url":null,"abstract":"<p >A new series of PVDF–HFP/PEG-based nanocomposite polymer electrolytes (NCPEs) have been fabricated using hausmannite (Mn<small><sub>3</sub></small>O<small><sub>4</sub></small>) nanoparticles as the nanofiller and LiClO<small><sub>4</sub></small> as the lithium-ion source <em>via</em> the solvent casting method. A pristine PVDF–HFP NCPE sample with 2 wt% nanofiller was also prepared for comparison. The Mn<small><sub>3</sub></small>O<small><sub>4</sub></small> nanoparticles were synthesized by the precipitation method using CTAB as a templating agent and MnCl<small><sub>2</sub></small>·4H<small><sub>2</sub></small>O as the precursor. FTIR spectroscopy showed that while pristine PVDF–HFP forms a nonpolar α-phase, the incorporation of salt and nanofiller induced a mixed β and γ crystal phase, indicating interaction between the matrix and additives. Surface morphology studies showed that the NCPEs had a denser surface than pristine PVDF–HFP, with no PEG spherulite formation detected in polarized optical micrographs. Electrochemical impedance spectroscopy revealed that the 2% blend NCPE exhibited the highest ion conductivity of 3.1 × 10<small><sup>−4</sup></small> S cm<small><sup>−1</sup></small> at 80 °C, an order of magnitude higher than the pristine NCPE (5.1 × 10<small><sup>−5</sup></small> S cm<small><sup>−1</sup></small>). Temperature-dependent ion conductivity followed Arrhenius behavior, indicating a thermally activated ion hopping mechanism. The dielectric relaxation peak shifted to higher frequency with increasing temperature, suggesting faster ion dynamics and improved conductivity.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 24","pages":" 9613-9625"},"PeriodicalIF":5.2,"publicationDate":"2024-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ma/d4ma00694a?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790297","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A deep-ultraviolet nonlinear-optical material with a wide bandgap and large static dielectric polarizability coefficient: Na6Si3F18†","authors":"Changcheng Tang, Xingxing Jiang, Xiuyu Wu, Yuechen Gong, Chao Yang, Ruixin Guo, Panpan Wang, Yongming Huang, Dakun Zhou, Huaiming Chen and Zheshuai Lin","doi":"10.1039/D4MA00973H","DOIUrl":"https://doi.org/10.1039/D4MA00973H","url":null,"abstract":"<p >A silicon-based noncentrosymmetric (NC) deep-ultraviolet (DUV) nonlinear optical material, Na<small><sub>6</sub></small>Si<small><sub>3</sub></small>F<small><sub>18</sub></small>, has been synthesized through a hydrothermal method. Na<small><sub>6</sub></small>Si<small><sub>3</sub></small>F<small><sub>18</sub></small> possesses a [SiNa<small><sub>9</sub></small>F<small><sub>42</sub></small>] group, which is constructed by an isolated [SiF<small><sub>6</sub></small>] octahedron and nine distorted [NaF<small><sub>6</sub></small>] octahedra interconnected with one another to form a condensed 3D structure, which is beneficial to increase the static dielectric polarizability coefficient, which was calculated to be 4.3 times that of quartz. The first-principles calculations indicate that Na<small><sub>6</sub></small>Si<small><sub>3</sub></small>F<small><sub>18</sub></small> possesses a very large bandgap of 10.45 eV (∼118.76 nm), which originates from the [SiF<small><sub>6</sub></small>] group and [NaF<small><sub>6</sub></small>] group and is larger than that of SrB<small><sub>4</sub></small>O<small><sub>7</sub></small>. Na<small><sub>6</sub></small>Si<small><sub>3</sub></small>F<small><sub>18</sub></small> crystalizes in the <em>P</em>321 space group, and is a potential DUV nonlinear optical crystal with the addition of periodic phase match technology, which could break through the wall of 120 nm for all-solid-state lasers.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 24","pages":" 9565-9572"},"PeriodicalIF":5.2,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ma/d4ma00973h?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Arylselanyl motifs in hierarchically structured mesoporous phenolic polymers: efficient adsorption sites for Hg2+ ions†","authors":"Vishnu Selladurai and Selvakumar Karuthapandi","doi":"10.1039/D4MA00899E","DOIUrl":"https://doi.org/10.1039/D4MA00899E","url":null,"abstract":"<p >Strategic installation of heteroatoms and modulation of porous hierarchy of polymers are significant approaches to obtain high-performance materials for practical applications. This study focuses on the syntheses of selenium-containing porous phenolic resin (Se-PR) using cheap raw materials, phenol and selenium dioxide. Two morphologically distinct polymers, Se-PR <strong>1</strong> and Se-PR <strong>2</strong>, were obtained <em>via</em> one-step synthesis using DMF and DMSO, respectively, as solvents. Various material characterization techniques such as thermogravimetry, powder X-ray diffraction, BET analysis, X-ray photoelectron spectroscopy, FT-IR spectroscopy and FE-SEM were used to establish the structure and morphology of the polymers. These studies confirmed that the morphology of the polymers is significantly altered by the solvents. Their in-built porous structure with appropriately placed selenium centers in the form of arylselanyl motifs, allows the polymers to display high binding affinity and fast adsorption kinetics towards Hg<small><sup>2+</sup></small> ions. The maximum Hg<small><sup>2+</sup></small> ion uptake capacities for Se-PR <strong>1</strong> and <strong>2</strong> were 625 mg L<small><sup>−1</sup></small> and 1057 mg L<small><sup>−1</sup></small>, respectively, which highlight the potential of organoselenium polymers as efficient adsorbents for Hg<small><sup>2+</sup></small> removal from water <em>via</em> soft–soft Lewis acid–base interaction (Hg<small><sup>2+</sup></small>⋯Se) and underscore their promising role in environmental remediation.</p>","PeriodicalId":18242,"journal":{"name":"Materials Advances","volume":" 24","pages":" 9838-9850"},"PeriodicalIF":5.2,"publicationDate":"2024-11-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.rsc.org/en/content/articlepdf/2024/ma/d4ma00899e?page=search","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142790336","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}