Photocatalysis is a promising approach to remove highly toxic and refractory aromatics pollutants. However, developing highly active photocatalyst is a long-standing challenge for pollutant degradation. This study addressed this challenge by developing GR (graphene)/TiO₂ and HPW (H₃PW₁₂O₄₀)/GR/TiO₂ membranes by sol-gel method. The removal efficiencies of HPW/GR/TiO₂ (the doping of 1.0% HPW) membrane for chlorophenols (including o-chlorophenol, 2,4-dichlorophenol, 2,4,6-trichlorophenol, and pentachlorophenol) and bisphenols (such as Bisphenol A, Bisphenol AP, Bisphenol AF, and Bisphenol S) were up to 97.02–82.71% and 93.28–68.63% with simulated sunlight radiation for 5 h, respectively. Compared with GR/TiO₂ composite membrane, HPW/GR/TiO₂ remarkably accelerated the formation rates of O₂⁻ and OH, due to the simultaneous transfer of photo-generated electrons (generated by TiO₂) to GR and HPW. In addition, the activity of the HPW/GR/TiO₂ membrane did not decline noticeably after 10-time recycle. Furthermore, the photocatalytic degradation reaction rate constants (k) of phenols by HPW/GR/TiO₂ membrane were calculated, and those for other chlorophenols and bisphenols were predicted using a quantitative structure-activity relationship model. The HPW/GR/TiO₂ membrane developed in this study poses high potential as an ideal photocatalyst for removal of phenolic pollutants in wastewater.

光催化是一种去除高毒性和难降解的芳族污染物的有前途的方法。但是，开发高活性光催化剂是污染物降解的长期挑战。这项研究通过溶胶-凝胶法开发GR（石墨烯）/ TiO ₂和HPW（H ₃ PW ₁₂ O ₄₀）/ GR / TiO ₂膜解决了这一挑战。HPW / GR / TiO ₂的去除效率（1.0％HPW的掺杂）膜用于氯酚（包括邻氯酚，2,4-二氯酚，2,4,6-三氯酚和五氯酚）和双酚（例如双酚A，双酚AP，双酚AF和双酚）模拟太阳辐射持续5 h，S）分别高达97.02–82.71％和93.28–68.63％。用GR /二氧化钛相比₂复合膜，HPW / GR /二氧化钛₂显着地加快了的形成率Ò ₂ ^-和OH，由于光生电子的同时传输（由二氧化钛产生的₂）至GR和HPW。另外，HPW / GR / TiO ₂的活性10次​​循环后，膜没有明显下降。此外，计算了HPW / GR / TiO ₂膜对苯酚的光催化降解反应速率常数（k），并使用定量构效关系模型预测了其他氯酚和双酚的降解速率。在这项研究中开发的HPW / GR / TiO ₂膜作为去除废水中酚类污染物的理想光催化剂具有很高的潜力。