In-situ growth of C-F@CCS@ZIF8/67–1/1 photocatalysts with internal electric field and interfacial enhancement on cobalt-copper foam surface for simultaneous removal of ciprofloxacin and Cr(VI)

Synergistic Effect of Ion Doping and Type-II Heterojunction Construction and Ciprofloxacin Degradation by MIL-68(In,Bi)-NH2@BiOBr under Visible Light

“…In addition, the pore size of the resulting composite 300MIBN@BOB was investigated by using N 2 adsorption curves (Figure S1a). The curves conformed to the type-I and type-IV isotherms, consistent with microporous and mesoporous adsorption. , Pore size distribution shows that both mesopores and micropores existed in 300MIBN@BOB.…”

“…As a result, based on their band gaps, the E VB potentials of BiOBr and MIL-68(In,Bi)-NH 2 are 2.52 and 1.48 eV, respectively (vs NHE) E VB = E g − E CB The photoluminescence (PL) spectra demonstrated fluorescence absorption by the material and further evaluated the separation performance of photogenerated charges. As can be seen in Figure a, the PL intensity of 300MIBN@BOB is much lower than that of MIL-68(In,Bi)-NH 2 and BiOBr under excitation light with a wavelength of 375 nm, indicating that the recombination of electrons and holes is efficiently controlled …”

ZIF-67/BiOCl Z-Scheme Heterojunction Photocatalyst for Photodegradation of Organic Dyes and Antibiotics

“…According to the above characterization and experimental results, the degradation mechanism and charge transfer process of RhB and TC are proposed in Figure . The redistribution of interfacial charge between ZIF-67 and surface-oxygen-defected BiOCl directly reveals the significant role of surface negative charges in the generation of interfacial electric fields in BiOCl . Therefore, by a direct Z-scheme heterojunction, an interfacial electric field is introduced at the ZIF-67/BiOCl interface to facilitate the transfer of photoexcited electrons from BiOCl to ZIF-67. ,, At the same time, the photoexcited holes inside ZIF-67 tend to undergo electrostatic recombination with the photoexcited electrons of BiOCl, rather than negatively charged fluorescence recombination on the surface of ZIF-67.…”

In Situ Growth of Z-Scheme Co/Al-LDH@Co3O4@Co-F Heterojunctions with Interfacial Enhancement and Synergistic Effects on a Cobalt Foam Surface for Environmental Remediation Studies

“…This can be attributed to the fact that the physical mixing process is hard to form a stable heterostructure by the binding force between the two active components, which greatly reduces the catalytic activity of the material. 48 Cr(VI) is considered to be one of the most toxic heavy metal ions. The pollutants of various antibiotics and heavy metals may present in a single form in the water body and may also be mixed and enriched as a result of the centralized treatment of urban sewage.…”

“…The degradation rate of TC by the physical mixture was only 54.7% (Figure S10). This can be attributed to the fact that the physical mixing process is hard to form a stable heterostructure by the binding force between the two active components, which greatly reduces the catalytic activity of the material …”