Advanced oxidation via the synergy of C-defective/C-O band modified ultrathin porous g-C3N4 and PMS for efficient photothermal degradation of bisphenol pollutants and lignin derivatives

扫码查看

原文链接

NETL
NSTL
万方数据

外文摘要：This work uses thermal polymerization of urea nitrate,oxyacetic acid and urea as the raw material to prepare ultra-thin porous carbon nitride with carbon defects and C-O band(OA-UN-CN).Density functional theory(DFT)calculations showed OA-UN-CN had narrower band gap,faster electron transport and a new internal construction electric field.Additionally,the prepared OA-UN-CN significantly enhanced photo-catalytic activation of peroxymonosulfate(PMS)due to enhanced light absorption performance and faster electron overflow.As the result,the OA-UN-CN/PMS could entirely degrade bisphenol A(BPA)within 30 min,where the photodegradation rate was 81.8 and 7.9 times higher than that of g-C3N4 and OA-UN-CN,respectively.Beyond,the OA-UN-CN/PMS could likewise degrade other bisphenol pollutants and sodium lignosulfonate efficiently.We suggested possible photocatalytic degradation pathways accordingly and explored the toxicity of its degradation products.This work provides a new idea on the development of advanced photocatalytic oxidation processes for the treatment of bisphenol pollutants and lignin derivatives,via a metal-free photothermal-catalyst.

外文关键词：

Photothermal-catalyticG-C3N4PeroxymonosulfateBisphenolSodium lignosulfonate

作者：

Liquan Jing、Meng Xie、Yuanguo Xu、Chun Tong、Xia Du、Heng Zhao、Na Zhong、Huaming Li、Jinguang Hu

展开 >

作者单位：

School of Chemistry and Chemical Engineering,Jiangsu University,Zhenjiang,212013,China

Department of Chemical and Petroleum Engineering,University of Calgary,2500 University Drive,NW,Calgary,Alberta,T2N1N4,Canada

School of Pharmacy,Jiangsu University,Zhenjiang,212013,China

School of Material Science&Chemical Engineering,Harbin University of Science and Technology,Harbin,150080,China

Institute for Energy Research,Jiangsu University,Zhenjiang,212013,China

展开 >

基金：

国家自然科学基金国家自然科学基金University of Calgary's Canada First Research Excellence Fund(CFREF)program(Canada)

项目编号：

220760688111310014

出版年：

2024

DOI：

10.1016/j.gee.2023.01.006

绿色能源与环境(英文)

CSTPCD

ISSN：

年,卷(期)：2024.9(7)