MoS_(2) nanomaterial with the micro-pompon structure was synthesized by a surfactant-assisted hydrothermal method.The morphologies and structures of as-prepared MoS_(2) micro-pompon were investigated by adding differe...MoS_(2) nanomaterial with the micro-pompon structure was synthesized by a surfactant-assisted hydrothermal method.The morphologies and structures of as-prepared MoS_(2) micro-pompon were investigated by adding different types of surfactants such as cetyltrimethyl ammonium bromide(CTAB),sodium dodecylbenzene sulphonate(SDBS),and polyvinyl pyrrolidone(PVP).The results indicated that the morphology of MoS_(2) could be controlled and changed effectively by the cationic sur-factant of CTAB.A reasonable growth mechanism for hollow structured MoS_(2) micro-pompon by hydrothermal processes was proposed.Further,photocatalytic degradation properties of MoS_(2) micro-pompon under visible light were evaluated by degradation of common organic dyes,which include rhodamine B(RhB),congo red,methyl orange,and methylene blue.The results indicated that MoS_(2) micro-pompon owned the highly selective catalytic ability to RhB with degradation efficiency of 95%in 60 min and 68%in 30 min.With the additive of the surfactant,the MoS_(2)-CTAB sample exhibited an enhanced ability of photocatalytic activity where degradation efficiency was improved to 92%in 30 min.The method employed in this work could be expanded to fabricate other sulfides with the controllable morphology and structure to further regulate the photocatalytic performance.展开更多
基金This work was financially supported by the National Research Foundation Singapore programme(Grant Nos.NRF-CRP21-2018-0007 and NRF-CRP22-2019-0007)Singapore Ministry of Education via AcRF Tier 3 Programme’Geometrical Quantum Materials’(Grant No.MOE2018-T3-1-002)+8 种基金AcRF Tier 2(Grant No.MOE2016-T2-1-131)AcRF Tier 1 RG4/17 and RG7/18,the National Natural Science Foundation of China(Grant Nos.11904289 and 61974120)the Fundamental Research Funds for the Central Universities(Grant Nos.3102019PY004,31020190QD010,and 3102019JC004)the Key Program for International Science and Technology Cooperation Projects of Shanxi Province(Grant No.2018KWZ-08)the National Key Research and Development Program of China(Grant No.2019YFC1520904)Key Research and Development Project of Shanxi Province(Grant Nos.2020GXLH-Z-027 and 2020ZDLGY04-08)the Natural Science Foundation of Shanxi Province(Grant Nos.2019JQ-613)the Foundation of the Education Department of Shanxi Province(Grant Nos.18JK0780)the start-up funds from Northwestern Polytechnical University(Grant Nos.19SH020159 and 19SH020123).
文摘MoS_(2) nanomaterial with the micro-pompon structure was synthesized by a surfactant-assisted hydrothermal method.The morphologies and structures of as-prepared MoS_(2) micro-pompon were investigated by adding different types of surfactants such as cetyltrimethyl ammonium bromide(CTAB),sodium dodecylbenzene sulphonate(SDBS),and polyvinyl pyrrolidone(PVP).The results indicated that the morphology of MoS_(2) could be controlled and changed effectively by the cationic sur-factant of CTAB.A reasonable growth mechanism for hollow structured MoS_(2) micro-pompon by hydrothermal processes was proposed.Further,photocatalytic degradation properties of MoS_(2) micro-pompon under visible light were evaluated by degradation of common organic dyes,which include rhodamine B(RhB),congo red,methyl orange,and methylene blue.The results indicated that MoS_(2) micro-pompon owned the highly selective catalytic ability to RhB with degradation efficiency of 95%in 60 min and 68%in 30 min.With the additive of the surfactant,the MoS_(2)-CTAB sample exhibited an enhanced ability of photocatalytic activity where degradation efficiency was improved to 92%in 30 min.The method employed in this work could be expanded to fabricate other sulfides with the controllable morphology and structure to further regulate the photocatalytic performance.
