A series of reduced graphene oxide flower-like BiOCOOH (RGO-BiOCOOH) composites with different weight addition ratios of reduced graphene oxide have been prepared for the first time by a two-step solvothermal approach, which showed higher photocatalytic activity than BiOCOOH toward degradation of rhodamine B (RhB) in water under simulated sunlight irradiation. The RGO-BiOCOOH composite with 2 wt% RGO content exhibited the highest photocatalytic degradation efficiency of RhB, which was about 2 times of pure BiOCOOH microflower. The enhanced photocatalytic activity of RGO-BiOCOOH composite could be attributed to the synergetic effects of enhanced adsorption capacity, narrower band gap, and more efficient separation of photogenerated electron-hole pairs and effective interfacial hybridization between RGO and flower-like BiOCOOH architecture. (C) 2015 Elsevier B.V. All rights reserved.
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Univ Malaya, Low Dimens Mat Res Ctr, Dept Phys, Fac Sci, Kuala Lumpur 50603, MalaysiaUniv Malaya, Low Dimens Mat Res Ctr, Dept Phys, Fac Sci, Kuala Lumpur 50603, Malaysia
Marlinda, Ab Rahman
Pandikumar, Alagarsamy
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Univ Malaya, Low Dimens Mat Res Ctr, Dept Phys, Fac Sci, Kuala Lumpur 50603, MalaysiaUniv Malaya, Low Dimens Mat Res Ctr, Dept Phys, Fac Sci, Kuala Lumpur 50603, Malaysia
Pandikumar, Alagarsamy
Yusoff, Norazriena
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Univ Malaya, Low Dimens Mat Res Ctr, Dept Phys, Fac Sci, Kuala Lumpur 50603, MalaysiaUniv Malaya, Low Dimens Mat Res Ctr, Dept Phys, Fac Sci, Kuala Lumpur 50603, Malaysia
Yusoff, Norazriena
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Huang, Nay Ming
Lim, Hong Ngee
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Univ Putra Malaysia, Dept Chem, Fac Sci, UPM Serdang, Serdang 43400, Malaysia
Univ Putra Malaysia, Funct Device Lab, Inst Adv Technol, UPMSerdang, Serdang 43400, MalaysiaUniv Malaya, Low Dimens Mat Res Ctr, Dept Phys, Fac Sci, Kuala Lumpur 50603, Malaysia