首页|Enhancing visible-light-driven NO oxidation through molecular-level insights of dye-loaded sea sands

Enhancing visible-light-driven NO oxidation through molecular-level insights of dye-loaded sea sands

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Natural minerals,abundant and easily obtained through simple physical processing,offer a cost-effective and environmentally friendly solution for dyeing wastew-ater disposal and air pollution treatment.This study investigates the photocatalytic removal of NO using natural different types of dyes,loaded on natural sand,under vis-ible light illumination.By examining various coating concentrations of dyes and sand weights,we discovered that sand loaded with Rhodamine B(RhB)exhibits high activity for the photo-oxidation of NO.A combination results of X-ray diffraction(XRD),X-ray photoelectron spectroscopy(XPS),Fourier transform infrared spec-troscopy(FTIR)and thermogravimetric(TG)analyses confirm the presence of SiO2,CaCO3,Al2O3 and iron oxides as the main components of the sand.Furthermore,studying RhB-loaded individual components reveals that CaCO3 plays a crucial role in enhancing the NO removal rate.Experimental results and theoretical calculations demonstrate the establishment of a directional charge transfer channel from CaCO3 to RhB,facilitating the adsorption and activation of molecular NO and O2.This work not only promotes the utilization of natural mineral resources but also enriches the fields of environmental photochemistry and semiconductor photocatalysis.

SanddyesRhodamine BPhoto-oxidation of NOVisible light illumination

Yu-Han Li、Bang-Fu Chen、Sónia A.C.Carabineiro、You-Yu Duan、Ping Tan、Wing-Kei Ho、Fan Dong

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Engineering Research Center for Waste Oil Recovery Technology and Equipment,Ministry of Education,Chongqing Key Laboratory of Catalysis and New Environmental Materials,Chongqing Technology and Business University,Chongqing 400067,China

Nanchang Institute of Technology,Nanchang 33044,China

LAQV-REQUIMTE,Department of Chemistry,NOVA School of Science and Technology,Universidade NOVA de Lisboa,2829-516 Caparica,Portugal

College of Physics and Center of Quantum Materials and Devices,Chongqing University,Chongqing 401331,China

Department of Science and Environmental Studies,The Education University of Hong Kong,Hong Kong 999077,China

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国家自然科学基金国家自然科学基金国家自然科学基金中国博士后科学基金Venture and Innovation Support Program for Chongqing Overseas ReturneesNatural Science Foundation Project of CQ CSTCChongqing Natural Science Postdoctoral FundResearch Project of Chongqing Education Commission FoundationResearch Project of Chongqing Education Commission FoundationResearch Project of Chongqing Education Commission FoundationScience and Technology Research Program of Chongqing Municipal Education Commission of ChinaPostdoctoral Program Funded by Chongqing,Chongqing University Innovation Research Group projectHigh Level Talent Scientific Research Startup Project of Chongqing Technology and Business UniversityFCT/MCTES(Funda??o para a Ciência e Tecnologia and Ministério da Ciência,Tecnologia e Ensino Superior)FCT/MCTES(Funda??o para a Ciência e Tecnologia and Ministério da Ciência,Tecnologia e Ensino Superior)Scientific Employment Stimulus—Institutional Call

5237010951808080217070362022M710830cx2022005CSTB2022NSCQ-MSX1267cstc2019jcyjbsh0 107KJQN201800826KJQN202000818KJQN202200830&KJQN201800840KJZD-K202100801CXQT210231956044UIDB/50006/2020UIDP/50006/2020CEECINST/00102/2018

2024

10.1007/s12598-023-02475-x

稀有金属(英文版)
中国有色金属学会

稀有金属(英文版)

CSTPCDEI
影响因子：0.801
ISSN：1001-0521
年,卷(期)：2024.43(2)
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