地聚合物膜-光触媒偶联处理纺织废水

IF 5.8 2区地球科学 Q2 CHEMISTRY, PHYSICAL

Applied Clay Science Pub Date : 2025-06-04 DOI:10.1016/j.clay.2025.107886

Zeni Rahmawati , Pedro Sánchez-Camacho , Greg A. Mutch , Alfa Akustia Widati , Triyanda Gunawan , Hamzah Fansuri

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引用次数: 0

摘要

本文以亚甲基蓝为模型，介绍了地聚合物膜（GM）与光催化剂（TiO2）的偶联，在废水处理过程中将过滤和光降解结合起来。以偏高岭土和碱活化剂为原料，经直接发泡法对孔隙进行改性，经地聚合制备了改性高分子材料。光催化剂TiO2分别以2.5%、5%和10% wt%的负载浸渍在gm中。采用SEM、XRD、FTIR和开孔率测定等技术考察了TiO2添加量对膜性能的影响。TiO2的加入不仅影响了纳米材料的孔隙率，而且影响了纳米材料的性能。在亚甲基蓝过滤降解方面，TiO2负载表现出独特的影响。GM-TiO2 10 wt%由于孔隙率最低，具有非常低的水力渗透性。GM-TiO2 5 wt%对水力渗透性的改善最大，且拒绝值一致。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Geopolymer membrane – photocatalyst coupling for textile wastewater treatment

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Geopolymer membrane – photocatalyst coupling for textile wastewater treatment

This article presents the coupling of a geopolymer membrane (GM) with a photocatalyst (TiO₂), to combine filtration and photodegradation during wastewater treatment, using methylene blue as a model. The GM was prepared through the geopolymerization of metakaolin and alkali activator with pore modification through direct foaming. The photocatalyst TiO₂ was impregnated into the GMs, with loadings of 2.5, 5 and 10 wt%. The influence of TiO₂ addition on the characteristics of the membranes was investigated using several techniques (SEM, XRD, FTIR and open porosity determination techniques). The addition of TiO₂ influenced the porosity as well as the performance of GMs. In terms of methylene blue filtration-degradation, the TiO₂ loading exhibited its influence in a distinctive manner. The GM-TiO₂ 10 wt% exhibited complete rejection with very low hydraulic permeability, owing to the lowest open porosity. The GM-TiO₂ 5 wt% inferred the highest improvement on hydraulic permeability with a consistent rejection value.

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来源期刊

Applied Clay Science 地学-矿物学

CiteScore

10.30

自引率

10.70%

发文量

289

审稿时长

39 days

期刊介绍： Applied Clay Science aims to be an international journal attracting high quality scientific papers on clays and clay minerals, including research papers, reviews, and technical notes. The journal covers typical subjects of Fundamental and Applied Clay Science such as: • Synthesis and purification • Structural, crystallographic and mineralogical properties of clays and clay minerals • Thermal properties of clays and clay minerals • Physico-chemical properties including i) surface and interface properties; ii) thermodynamic properties; iii) mechanical properties • Interaction with water, with polar and apolar molecules • Colloidal properties and rheology • Adsorption, Intercalation, Ionic exchange • Genesis and deposits of clay minerals • Geology and geochemistry of clays • Modification of clays and clay minerals properties by thermal and physical treatments • Modification by chemical treatments with organic and inorganic molecules(organoclays, pillared clays) • Modification by biological microorganisms. etc...