Carbon Letters最新文献

{"title":"Advances in ferroelectric and piezoelectric photocatalysts with oxygen vacancy","authors":"Shuang Zhao,&nbsp;Yiyang Wan,&nbsp;Lu Han,&nbsp;Bochao Tian,&nbsp;Zhongyu Duan,&nbsp;Ruidan Su,&nbsp;Xibao Li","doi":"10.1007/s42823-024-00794-2","DOIUrl":"10.1007/s42823-024-00794-2","url":null,"abstract":"<div><p>Photocatalysis technology including hydrogen evolution from water splitting, CO₂ reduction and N₂ conversion to ammonia emerges as a significant approach for energy crisis and environmental pollution. For these conventional semiconductors such as TiO₂, ZnO, WO₃, CdS and g-C₃N₄, however, inefficient photoabsorption, rapid recombination of photogenerated carriers, and inadequate surface reactive sites hamper the photoinduced activity and stability. Defect engineering, especially oxygen vacancy, has recently drawn the attention of a number of investigators primarily in connection with its feasibility of regulatability, identifiability and effectiveness. A series of ferroelectric and piezoelectric semiconductors, with internal electric field generated by the polarization, are considered an excellent candidate for replacement of conventional semiconductors, because the observed charge separation ability of those is far from theoretical expectation. With the boost of oxygen vacancy, polarization behavior can be effectively regulated to further improve photocatalytic performance. Related studies based on the above background are the current hotspot of photocatalysis; this paper reviews the latest research progress of ferroelectric and piezoelectric photocatalysts with oxygen vacancy. Starting from the generation of oxygen vacancies, five preparation strategy including ion doping, thermal treatment, chemical reduction, ultraviolet irradiation, and plasma etching are introduced; advanced characterization are summarized in classification of spectroscopy, energy spectrum, electron microscopy, density function theory and in situ techniques. Secondly, the mechanism of oxygen vacancy regulated polarization and their synergistic photocatalytic reactions are reviewed and summarized. Finally, an overview on the prospect of advanced photocatalytic engineering concerned to oxygen vacancies involved ferroelectric and piezoelectric photocatalysts is proposed.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 1","pages":"287 - 308"},"PeriodicalIF":5.5,"publicationDate":"2024-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219142","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Correction: Upcycling of waste masks into carbon nanotubes combined with ZIF-8 for the detection of heavy-metal ions and nitrite","authors":"Tong Han,&nbsp;Ying-Ai Piao,&nbsp;Long-Yue Meng,&nbsp;Biao Jin","doi":"10.1007/s42823-024-00797-z","DOIUrl":"10.1007/s42823-024-00797-z","url":null,"abstract":"","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"34 9","pages":"2459 - 2459"},"PeriodicalIF":5.5,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142645674","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of acidity of solid acid catalysts during non-oxidative thermal decomposition of LDPE","authors":"Dipali P. Upare,&nbsp;Chul Wee Lee,&nbsp;Don Keun Lee,&nbsp;Young Soo Kang","doi":"10.1007/s42823-024-00789-z","DOIUrl":"10.1007/s42823-024-00789-z","url":null,"abstract":"<div><p>Thermal decomposition of low-density polyethylene (LDPE) was monitored by thermogravimetry under N₂ atmosphere in the presence of solid acid catalysts such as alumina (α-Al₂O₃, γ-Al₂O₃), crystalline silica-alumina (SA, molar ratio of Si/Al = 0.19) and amorphous silica-alumina catalysts (ASA, molar ratio of Si/Al = 4.9). Crystal structure and surface area of solid acid catalysts were measured by XRD and BET, respectively. The strength and distribution of acid sites of solid acid catalysts were estimated by NH₃-TPD. It was observed that total acidity strength is in the order of ASA (1.77 μmmol NH₃/g) &gt; AS (1.42 μmol NH₃/g) &gt; γ-Al₂O₃ (1.06 μmol NH₃/g) &gt; α-Al₂O₃ (0.06 μmol NH₃/g). Thermal degradation behavior of LDPE with and without solid acid catalyst was monitored by TGA, where heating rates (β) of 5, 10, and 20 °C/min were employed under an inert atmosphere, and their activation energies (E_a), onset temperatures (T_initial), decomposition temperatures (T_decomp) were calculated and compared. The activation energy (E_a) was evaluated using the Coats-Redfern method. Solid acid catalysts with stronger acidity and higher surface area showed a decrease in activation energy and onset temperature. Activation energy of LDPE over ASA catalyst is decreased to 97.3 kJ/mol from thermal decomposition of LDPE without catalyst of 117.2 kJ/mol under heating rate of 10 °C/min. The isothermal decomposition of LDPE was monitored at 300 °C for 3 h with a heating rate of 10 °C/min, where 13.1% and 24.2% wt. loss were observed over SA and ASA, respectively, while only 0.7% wt. loss was observed for LDPE without a solid acid catalyst.</p><h3>Graphical abstract</h3><p>Single step decomposition of LDPE</p><p>Thermal degradation behavior of LDPE monitored by TGA, with different heating rates (β) of 5, 10, 20 °C/min.</p><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 1","pages":"277 - 285"},"PeriodicalIF":5.5,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42823-024-00789-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219144","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recent advances in carbon-based catalysts for electrocatalytic nitrate reduction to ammonia","authors":"Cuilian Sun,&nbsp;Xiujing Xing,&nbsp;Jin Li,&nbsp;Wei Xiong,&nbsp;Hao Li","doi":"10.1007/s42823-024-00790-6","DOIUrl":"10.1007/s42823-024-00790-6","url":null,"abstract":"<div><p>The damage caused by water pollution has seriously affected human health, in which nitrate is difficult to remove effectively because of its stability and solubility in the water environment. Among the various technologies for nitrate removal, electrocatalytic conversion of nitrate to ammonia is one of the best choice because of its green and efficient nature as well as its ability to “turn waste into treasure”. In recent years, the development of high-performance electrocatalysts to promote the activity of electrocatalytic nitrate reduction (NO₃RR) has received extensive attention from researchers. Among various electrocatalytic materials for NO₃RR, carbon-based catalysts have become a promising electrocatalyst due to the advantages of affordable price, controllable structure, excellent stability and exceptional reactivity. Focusing on the carbon-based materials, this review summarizes the research progress of carbon-based catalysts for NO₃RR in recent years, including heteroatom-doped carbon-based catalysts as well as metal and metal oxide-loaded or modified carbon-based catalysts. Opinions on the current challenges and future research directions of carbon-based catalysts for NO₃RR are also presented. This review hopes to provide some references and principles for the design and preparation of carbon-based catalysts for high-performanceNO₃RR process.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 1","pages":"1 - 19"},"PeriodicalIF":5.5,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanical properties of polycaprolactone bone scaffolds reinforced with carbon nanotube-modified tricalcium phosphate","authors":"Wenjun Yang,&nbsp;Chenchen Li,&nbsp;Lu Han","doi":"10.1007/s42823-024-00788-0","DOIUrl":"10.1007/s42823-024-00788-0","url":null,"abstract":"<div><p>Three-dimensional printed polycaprolactone/β-tricalcium phosphate (PCL/β-TCP) scaffolds reinforced with carbon nanotubes (CNTs) were fabricated and characterized for bone tissue engineering applications. The incorporation of CNTs significantly enhanced the mechanical properties, with the aligned PCL/β-TCP/CNT scaffold (1 wt% CNTs) exhibiting a 125% and 123% increase in compressive modulus (180.3 ± 10.1 MPa) and strength (7.8 ± 0.6 MPa), respectively, compared to the PCL/β-TCP scaffold. The β-glycerol phosphate (BGP)-modified PCL/β-TCP/CNT scaffold showed similar mechanical properties to the aligned scaffold. All scaffolds maintained high porosity (&gt; 70%) and a wide pore size distribution (50–500 μm). The scaffolds demonstrated excellent biocompatibility, with hemolysis rates below 5% and high cell viability. The aligned PCL/β-TCP/CNT scaffold promoted the highest rat adipose-derived stem cell proliferation, while the BGP-modified scaffold enhanced human dental pulp stem cell proliferation and mineralization.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 1","pages":"267 - 276"},"PeriodicalIF":5.5,"publicationDate":"2024-08-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142219165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sun-powered synthesis: harnessing multiwall carbon nanotube-EB photocatalytic magic in a unified photocatalytic-biocatalytic system for solar- driven L-glutamate production from ɑ-ketoglutarate","authors":"Abhishek Mishra,&nbsp;Rajesh K. Yadav,&nbsp;Shaifali Mishra,&nbsp;Rehana Shahin,&nbsp;Satyam Singh,&nbsp;Abhishek Kumar Gupta,&nbsp;Rajat Singhal,&nbsp;Navneet K. Gupta,&nbsp;Jin-OoK Baeg,&nbsp;Gamal A. El-Hiti,&nbsp;Krishna Kumar Yadav,&nbsp;Sunita Singh","doi":"10.1007/s42823-024-00780-8","DOIUrl":"10.1007/s42823-024-00780-8","url":null,"abstract":"<div><p>Artificial photosynthesis, which mimics the natural process used by plants, offers a promising strategy for harnessing solar energy to produce valuable fuels. One intriguing approach is the photocatalyst-enzyme attached system, where a photocatalyst captures light energy and transfers it to an enzyme to drive specific chemical reactions. This study describes the synthesis of a novel photocatalyst (MWCNTCEBr) formed by coupling multiwall carbon nanotubes (MWCNTs) with a dye ethidium bromide (EBr) via a condensation reaction. The resulting photocatalyst exhibits excellent charge separation and migration abilities, leading to enhanced photocatalytic activity. Notably, MWCNTCEBr photocatalyst successfully converts α-Ketoglutarate to L-Glutamate (81.9%) and photo-regeneration of NADH (76.20%) under the influence of solar radiation. Therefore, the study demonstrates the development and the application of MWCNTCEBr photocatalyst for impressive NADH regeneration and bio-transformation.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 1","pages":"257 - 265"},"PeriodicalIF":5.5,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141928793","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Sensitive and selective electrochemical detection of acetaminophen based on GO-MnO2-modified electrode","authors":"V. Anbumannan,&nbsp;K. Suresh","doi":"10.1007/s42823-024-00787-1","DOIUrl":"10.1007/s42823-024-00787-1","url":null,"abstract":"<div><p>This article describes an efficient electrochemical sensor based on a graphene oxide- manganese dioxide (GO-MnO₂) nanocomposite for detecting acetaminophen (AAP) in human fluids. The MnO₂-wrapped GO sensing element was prepared by a simple and environmentally friendly co-precipitation method. The prepared GO-MnO₂ nanostructure was characterized for its structural, morphological, and functional properties and tested for AAP detection. At a pH of 3, the electrochemical results revealed a high redox process toward AAP due to the transfer of two electrons and protons between the GO-MnO₂/glassy carbon electrode (GO-MnO₂/GCE) and AAP. The differential pulse voltammetry (DPV) analytical results showed the precise sensing ability of AAP in a wide linear range [0.125–2000 µM] with superior anti-interference ability. The calculated sensitivity of the GO-MnO₂/GCE was 17.04 µAµM⁻¹ cm⁻², and the detection limit (LOD) was 7.042 nM. The sensor exhibited high reliability, good reproducibility, and a good recovery range of 98.47–99.22% in human urine sample analysis.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 1","pages":"245 - 255"},"PeriodicalIF":5.5,"publicationDate":"2024-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141948430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Retraction Note: Comparison and evaluation of the performance of graphene-based biosensors","authors":"Walid Kamal Abdelbasset,&nbsp;Saade Abdalkareem Jasim,&nbsp;Dmitry Olegovich Bokov,&nbsp;Maria Sergeevna Oleneva,&nbsp;Anvar Islamov,&nbsp;Ali Thaeer Hammid,&nbsp;Yasser Fakri Mustafa,&nbsp;Ghulam Yasin,&nbsp;Arnold C. Alguno,&nbsp;Ehsan Kianfar","doi":"10.1007/s42823-024-00785-3","DOIUrl":"10.1007/s42823-024-00785-3","url":null,"abstract":"","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 2","pages":"917 - 917"},"PeriodicalIF":5.5,"publicationDate":"2024-08-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143740647","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"One-step preparation of N-doped porous carbon materials with excellent microwave absorption properties based on methylene blue saturated wood-based activated carbon","authors":"Zhenfei Lv,&nbsp;Chong Lan,&nbsp;Yukun Cao,&nbsp;Mengke Fan,&nbsp;Yanghui Ke,&nbsp;Wenbo Guo,&nbsp;Yixian Yang,&nbsp;Xiulin Shen","doi":"10.1007/s42823-024-00786-2","DOIUrl":"10.1007/s42823-024-00786-2","url":null,"abstract":"<div><p>Porous carbon has been intensively used for microwave absorption in merits of its outstanding specific surface area and dielectric properties. This study investigates the microwave absorption capacity of saturated wood-based activated carbon (SWAC) which was used for methylene blue treatment. The results demonstrate that SWAC, subjected to high temperature calcination, exhibits excellent microwave absorption properties. The structure, composition, micro-morphology, and electromagnetic parameters of SWAC were comprehensively analyzed using various techniques. The findings reveal that after calcination, SWAC possesses a rich pore structure, optimized material impedance matching, and the introduction of N atoms from the organic substance methylene blue into the carbon lattice of SWAC, thereby providing dipole polarization loss. These properties significantly contribute to its microwave absorption performance. The optimal reflection loss of SWAC at 6 GHz reaches −50.29 dB with an effective absorption bandwidth of 2.01 GHz, achieved at a calcination temperature of 700 °C and a paraffin matrix additive amount of 25%. The one-step treatment of SWAC proves to be a competitive and cost-effective method for producing microwave absorbers, which holds significant importance for the recovery of SWAC.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 1","pages":"235 - 244"},"PeriodicalIF":5.5,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141948431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"An innovative approach utilizing bimetallic Ag@Sn-oxy nanocomposite with rGO-decorated glassy carbon-modified electrode for high-performance detection of hydroquinone","authors":"Sethupathy Ramanathan,&nbsp;Panneerselvam Perumal","doi":"10.1007/s42823-024-00783-5","DOIUrl":"10.1007/s42823-024-00783-5","url":null,"abstract":"<div><p>Herein, the electrochemical technique was employed to detect hydroquinone (HQ) using a modified glassy carbon electrode (GCE) with reduced graphene oxide (rGO) and silver (Ag)-decorated tin oxy-nanoparticles (SnONPs) to form Ag@SnONPs/rGO nanocomposites (NC). The Ag@SnONPs/rGO nanocomposites were morphologically characterized using multiple analytical methods such as XRD, Raman, XPS, HR-SEM, and HR-TEM. This study revealed that Ag@SnONPs/rGO-NC exhibits excellent conductivity due to the presence of rGO that provides potential π–π interactions with SnONPs, while Ag enhances electron-transfer kinetics. This facilitates efficient charge transport within the sensor, thereby improving HQ adsorption. The key advantages of the sensor demonstrate a concentration of 0.5–200 µM, and a low detection limit value of 0.010 µM, and a high sensitivity value of 6.0746 µA µM⁻¹ cm². Under optimal conditions, the Ag@SnONPs/rGO sensor may be used to determine HQ and its concentration using cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The Ag@SnONPs-rGO/GCE sensor demonstrated excellent reproducibility, repeatability, and stability. Moreover, the suggested bimetallic nanocomposite effectively determined the presence of HQ in water and cosmetic samples.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 1","pages":"221 - 234"},"PeriodicalIF":5.5,"publicationDate":"2024-07-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141868088","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}