Leaf‐vein‐like g‐C3N4 synthesized via a KBH4‐assisted thermal polycondensation strategy exhibits enhanced optical absorption, efficient charge carrier separation, and ample active sites, accordingly enabling excellent photocatalytic H2O2 evolution. The synergistic effect of B doping and defect sites on the improvement of catalyst performance is fully discussed by experiments and density functional theory calculations.

Synthesis of Leaf‐Vein‐Like g‐C 3 N 4 with Tunable Band Structures and Charge Transfer Properties for Selective Photocatalytic H 2 O 2 Evolution

Nonradicals induced degradation of organic pollutants by peroxydisulfate (PDS) and peroxymonosulfate (PMS): Recent advances and perspective

Activation of persulfates by carbonaceous materials: A review

High-efficiency degradation of organic pollutants with Fe, N co-doped biochar catalysts via persulfate activation.

As we all know, environmental protection and sustainable energy utilization are significant challenges for us. Due to their many excellent characteristics, carbon materials have been playing a very important role in energy and environmental applications. Biomass is the only renewable carbon source and crucial precursor of carbonaceous materials and has the advantages of a unique structure, a wide range of sources, biodegradability, and low cost. Developing high-performance carbonaceous materials from biomass is a significant research subject. Biomass-derived porous graphitic carbon materials (BPGCs) have received extensive attention as novel high-performance sustainable carbon materials owing to its well-developed porous structure, good graphitic structure, and heteroatom doping. Here, this review firstly focuses on the principal synthesis methodologies of BPGCs. Next, three electrochemical energy storage and conversion systems that utilize BPGCs are intensively investigated, including supercapacitors (SCs), lithium-ion batteries (LIBs) and fuel cells (FCs). Then, BPGCs are further reviewed in terms of their application in the field of environmental protection, which is also the first systematic summary of BPGCs in environmental applications. Finally, this review points out the direction that is worthy of further research in the future and the essential issues that have not yet been resolved.

Biomass-derived porous graphitic carbon materials for energy and environmental applications

Herein, hierarchical porous biochar from shrimp shell (PSS-bio) was prepared and applied for persulfate activation for 2,4-dichlorophenol removal. The pyrolysis temperature was found to play an important role in carbon structure and property modulation, where PSS-bio obtained at 800 °C (PSS-800) exhibited the fastest adsorption capacity and the best catalytic activity with the degradation rates 29 times higher than that of PSS-bio obtained at 400 °C (PSS-400). Further analysis demonstrated that hierarchical pores and carbon configuration were two key impact factors of biochar in AOP. Interestingly, the original free-radical dominated pathway in PSS-400 also changed into a non-radical one (direct two-electron transfer path) in PSS-800, whose efficiency could be somewhat disturbed by pH values, humic acid and anions regardless of their concentrations as low as 5 mM or as high as 500 mM, demonstrating its application potential for the treatment of both highly saline water and organic-rich water.

Hierarchical porous biochar from shrimp shell for persulfate activation: A two-electron transfer path and key impact factors

Ultrathin PtNi nanozyme based self-powered photoelectrochemical aptasensor for ultrasensitive chloramphenicol detection.

Visible light-activated self-powered photoelectrochemical aptasensor for ultrasensitive chloramphenicol detection based on DFT-proved Z-scheme Ag2CrO4/g-C3N4/graphene oxide

The layered double hydroxides (LDHs) are considered to own great potential to serve as a catalyst for water electrolysis, while their extremely poor hydrogen evolution reaction (HER) activity limits their application. Herein, a general designing strategy to improve the HER activity of LDHs by P doping and deposition of metal nanodots (NDs) is proposed, which increases one order of magnitude higher than that of pristine LDHs. The obtained electrocatalyst, such as Cu NDs/P-FeCoLDH (CPFC-LDH), reaching a current density of 10 mA/cm2 with only 63 mV overpotential for HER in alkaline electrolyte. The adsorption energy of Hads and OH on catalyst is optimized by this strategy, which can weaken the interaction between the adsorbed Hads and electronegative oxygen in LDHs by formation of P O bonds. This work provides a strategy to develop LDHs materials with high catalytic activity for HER.

Improved hydrogen evolution activity of layered double hydroxide by optimizing the electronic structure

Preparation of floating porous g-C3N4 photocatalyst via a facile one-pot method for efficient photocatalytic elimination of tetracycline under visible light irradiation

Xu Zhu

Papers

Hierarchical porous biochar from shrimp shell for persulfate activation: A two-electron transfer path and key impact factors

Ultrathin PtNi nanozyme based self-powered photoelectrochemical aptasensor for ultrasensitive chloramphenicol detection.

Visible light-activated self-powered photoelectrochemical aptasensor for ultrasensitive chloramphenicol detection based on DFT-proved Z-scheme Ag2CrO4/g-C3N4/graphene oxide

Improved hydrogen evolution activity of layered double hydroxide by optimizing the electronic structure

Preparation of floating porous g-C3N4 photocatalyst via a facile one-pot method for efficient photocatalytic elimination of tetracycline under visible light irradiation