2023
DOI: 10.1016/j.cej.2022.139435
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Engineering the photocatalytic performance of B-C3N4@Bi2S3 hybrid heterostructures for full‐spectrum‐driven Cr(VI) reduction and in-situ H2O2 generation: Experimental and DFT studies

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Cited by 41 publications
(10 citation statements)
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“…Figure a shows the photocatalytic activities of pure CdS and CdS-rGO under simulated solar irradiation . Comparing the photocatalytic performances of binary complexes with different amounts of rGO, H 2 O 2 production by CdS-rGO-20 is much higher than that of CdS, with the yield reaching 70.6 μmol, which presents a 1.2-fold increase in production .…”
Section: Resultsmentioning
confidence: 98%
“…Figure a shows the photocatalytic activities of pure CdS and CdS-rGO under simulated solar irradiation . Comparing the photocatalytic performances of binary complexes with different amounts of rGO, H 2 O 2 production by CdS-rGO-20 is much higher than that of CdS, with the yield reaching 70.6 μmol, which presents a 1.2-fold increase in production .…”
Section: Resultsmentioning
confidence: 98%
“…At acidic pH, Cr­(VI) exists in the form of oxyanions such as dichromate (Cr 2 O 7 –2 ) and hydrogen dichromate (HCrO 4 – ) in the solution, and the reduction reaction proceeds as per eqs and . While in an alkaline medium (pH ≥ 6), Cr­(VI) exists in the form of CrO 4 2– . , In acidic conditions, the existence of positively charged H + enhances the electrostatic interaction between Cr 2 O 7 –2 and HCrO 4 – species and the catalyst’s surface . This resulted in the improved photo-reduction ability of the 10N- g -CDs/PCN catalyst in acidic pH.…”
Section: Resultsmentioning
confidence: 99%
“…44,45 In acidic conditions, the existence of positively charged H + enhances the electrostatic interaction between Cr 2 O 7 −2 and HCrO 4 − species and the catalyst's surface. 46 This resulted in the improved photo-reduction ability of the 10N-g-CDs/PCN catalyst in acidic pH. In contrast, at alkaline pH, the abundantly generated OH − creates electrostatic repulsion between CrO 4 2− and the catalyst, leading to lower Cr(VI) reduction photoactivity (eq 3).…”
Section: ■ Results and Discussionmentioning
confidence: 99%
“…Due to the lower electronegativity of S in comparison with N, the substitution of S could make the local environments more polar, in which the carbon atoms next to S become more electrophilic, enhancing the adsorption of oxygen molecules [148] . Boron (B) was also one of the additional options to dope into g‐C 3 N 4 with the ability to replace N atoms in the network to modulate the band gap energies of the materials [157] …”
Section: Strategies To Modify G‐c3n4 For Enhancing H2o2 Photoproductionmentioning
confidence: 99%
“…[148] Boron (B) was also one of the additional options to dope into g-C 3 N 4 with the ability to replace N atoms in the network to modulate the band gap energies of the materials. [157] Based on the evidence from non-metallic doping, assisting in modulating the electronic structures of g-C 3 N 4 , the challenges in light absorption capacities still remain. Many studies observed the change in VB and CB positions of g-C 3 N 4 , which could gain efficient charge transportation in the system.…”
Section: Single-element Dopingmentioning
confidence: 99%