Jun Di

Nanjing University of Science and Technology | NJUST · School of Chemistry and Chemical Engineering

Effective photogenerated charge transfer and utilization have been regarded as a critical factor for achieving highly efficient photosynthesis of ammonia. However, the lacks necessary driving force in many catalysts limit the directly charge transfer. In this work, Cu porphyrin‐based monoatomic layer (PML‐Cu) is modified on face‐centered cubic stru...

Photocatalysis has problems such as low light absorption efficiency and rapid recombination of photogenerated electron-hole pairs. Many studies have been conducted to improve these issues. This review encapsulates the progress and applications of two pioneering research fields in catalysis: single-atom and two-dimensional (2D) material catalysts. T...

The role of vacancy associates for photocatalysis is still an open question. Here, the CuIn2S4 atomic layers with Cu-S vacancy associates is developed to study the influence of vacancy associates on photocatalytic nitrate-ammonia conversion. The engineered Cu-S vacancy associates improve the light absorption intensity of CuIn2S4 among the infrared...

Currently, it is widely recognized by scholars that nanocatalytic materials with high dispersity have a better catalytic effect on the thermal decomposition of energetic materials. However, there are significant challenges in exploring the relationship between the dispersity and catalytic performance of NCMs in NCMs/EMs, and with the literature rar...

Novel N‐doped Bi 3 O 4 Br/(BiO) 2 CO 3 ultrathin nanojunctions have been prepared. Alkalization dehalogenation was performed to form Bi 3 O 4 Br, surfactant was employed to control the ultrathin thickness, and few‐layers of C 3 N 4 as a sacrificial agent were used to build the N‐doped (BiO) 2 CO 3 . The photocatalytic behavior of the achieved N‐dop...

Building a polarization center is an effective avenue to boost charge separation and molecular activation in photocatalysis. However, a limited number of polarization centers are usually created. Here, a polarization plane based on two-dimensional (2D) atomic layers is designed to maximize the surface polarization centers. The Mn in a 2D crystal la...

The high‐energy (H2dabco)[NH4(ClO4)3] (DAP‐4) with excellent energetic performance attracts wide attention from researchers. The investigation of its interaction with the Aluminum (Al) is of great importance. However, the higher ignition threshold of DAP‐4 and the dense oxide layer (Al2O3) of Al severely limit the energy release efficiency of Al/DA...

Enhancing the oxidation and reduction capabilities of semiconductor catalysts through Type-II heterojunction engineering is a viable approach. A new photocatalytic material, Bi4O5I2/BiOBr, has been successfully developed by integrating Bi4O5I2 into the structure of BiOBr using a straightforward solvothermal technique. The significantly reducing el...

The development of new near‐infrared‐responsive photocatalysts is a fascinating and challenging approach to acquire high photocatalytic hydrogen evolution (PHE) performance. Herein, near‐infrared‐responsive black CuVP2S6 and CuCrP2S6 flakes, as well as CuInP2S6 flakes, are designed and constructed for PHE. Atom‐resolved scanning transmission electr...

The metal indium sulfides have attracted extensive research interest in photocatalysis due to regulable atomic configuration and excellent optoelectronic properties. However, the synthesis of metal indium sulfide atomic layers is still challenging since intrinsic non‐van‐der‐Waals layered structures of some components. Here, a surfactant self‐assem...

The enhancement of photocatalytic semiconductor degradation performance through a bismuth‐rich strategy and heterojunction engineering is considered a very effective approach. Herein, the bismuth‐rich Bi 3 O 4 Cl/Bi x O y I z composites are synthesized through a simple solvothermal reaction. The composites have an internal electric field because of...

Over the past few decades, photocatalysis technology has received extensive attention because of its potential to mitigate or solve energy and environmental pollution problems.Designing novel materials with outstanding photocatalytic activities has become a research hotspot in this field. In this study, we prepared a series of photocatalysts in whi...

The role of vacancy associates in photocatalytic CO2 reduction is an open question. Herein, the Nb─O vacancy associates (VNb─O) are engineered into niobic acid (NA) atomic layers to tailor the CO2 photoreduction performance. The intrinsic charge compensation from O to Nb around Nb─O vacancy associates can manipulate the active electronic states, le...

The insufficient active sites and slow interfacial charge transfer of photocatalysts restrict the efficiency of CO2 photoreduction. The synchronized modulation of the above key issues is demanding and challenging. Herein, strain-induced strategy is developed to construct the Bi–O-bonded interface in Cu porphyrin-based monoatomic layer (PML-Cu) and...

Dyes and antibiotics as typical persistent organic pollutants (POPs) are widely present in the environment, but can hardly be removed completely by traditional water treatment methods. Here, we designed Bi4O5Br2/g‐C3N4 composite nanosheets for efficient photocatalytic removal of POPs in water. The Bi4O5Br2/g‐C3N4 composite with a heterojunction str...

Artificial photosynthesis can convert carbon dioxide into high value‐added chemicals. However, due to the poor charge separation efficiency and CO2 activation ability, the conversion efficiency of photocatalytic CO2 reduction is greatly restricted. Ultrathin 2D photocatalyst emerges as an alternative to realize the higher CO2 reduction performance....

A strategy for preparing high catalytic activity in-situ generation of CuO composite on Ti3C2Tx MXene surface (named I-CuO/Ti3C2Tx) composite catalysts precursors by using electrostatic self-assembly between positively charged Cu2+ and...

To avoid the electromagnetic radiation pollution derived from rapid development of radio technology, designing an absorber integrated multiple properties with vigorous reflection loss (RL), wide bandwidth, thin thickness and low...

Due to the suitable bandgap, unique electronic state, adjustable atomic structure and outstanding optoelectronic properties, In-based materials exhibits intriguing photocatalytic performances. This critical review summarizes recent progress in the design and tuning of various In-based photocatalysts to boost solar energy conversion efficiency. Firs...

Novel graphene-like boron nitride (BN)/Bi3O4Br photocatalysts have been controllably synthesized through a facile solvothermal method for the first time. Layer contact stacking between graphene-like BN and ultrathin Bi3O4Br was achieved with strong interaction. Dehalogenation is designed to harvest more visible light, and the ultrathin structure of...

The low-coordinated atoms such as edges, single atoms and vacancies have been widely determined as reactive sites for catalytic oxidative desulfurization. However, the grain boundaries (GB) as a favorable atomic configuration has been ignored. In this work, a universal strategy is proposed to engineer grain boundaries into oxides via facile two-ste...

Rapid recombination of interfacial charges is considered to be the main obstacle limiting N2 photofixation. It is urgent but challenging to develop a precise and stable strategy to steer charge transfer. Herein, oxygen-vacancy-rich Bi2Sn2O7 (BSO) quantum dots are designed to be mounted on ultrathin BiOBr (BOB) with Bi-O vacancy pairs to construct t...

Sodium-ion batteries (SIBs) are considered the most up-and-coming complements for large-scale energy storage devices due to the abundance and cheap sodium. However, due to the bigger radius, it is still a great challenge to develop anode materials with suitable space for the intercalation of sodium ions. Herein, we present hard carbon microtubes (H...

Vigorous reflection loss (RL), wide bandwidth together with suitable absorption frequency band are key application indicators for cutting-edge electromagnetic (EM) absorbers to avoid EM pollution in the aerospace. However, the rational design of EM absorbers, especially for the integration of multiple properties, remains highly challenging. Here, w...

Defect engineering has been demonstrated to be an appealing strategy to boost the photocatalytic activity of materials. However, can higher defect concentration bring about higher photocatalytic activity? This is an open question. In this work, BiPO4 photocatalysts with controllable oxygen vacancy concentrations were successfully synthesized. The p...

Bismuth-based materials represent a promising photocatalytic material for mild and sustainable CO2 conversion. Despite promising achievements in advanced research, single bismuth-based materials still suffer from issues, such as unsuitable energy band structures, high photogenerated electron-hole recombination, poor electron extraction, and lack of...

Numerous strategies have been developed to tailor the photocatalytic performance of catalysts. However, do any general commonalities exist in these strategies for activity improvement? It is desirable to explore the general regularity of these strategies, thus guiding further developments in the field of photocatalysis. In this review, we propose t...

A universal atomic layer confined doping strategy is developed to prepare isolated Cu atoms incorporated Bi24O31Br10 materials. The local polarization can be created along Cu‐O‐Bi atomic interface, which enables better electron delocalization for effective N2 activation. The optimized Cu‐Bi24O31Br10 atomic layers show 5.3 and 88.2 times improved ph...

Herein, BiOBr with (110)/(102) facet homojunction (BiOBr-2) was designed via crystal facet reconstruction in order to achieve the optimal interfacial charge separation rate, thus realizing the maximal photocatalytic CO2 conversion efficiency of the intrinsic photocatalyst. Without any co-catalysts and sacrificial reagents, BiOBr-2 exhibits 100% sel...

Developing catalyst with abundant surface active sites is the core issue to achieve efficient catalytic oxidative desulfurization performance. In this work, Mo doped W18O49 ultrathin nanowires is fabricated through solvothermal method to provide plentiful low coordinated metal atoms around oxygen vacancies to trigger oxidative desulfurization react...

The design and construction of high-performance catalysts can provide excellent opportunities for solving the challenges related to energy conversion and environmental pollution. Single-atom catalysts (SACs) have recently emerged as promising alternatives to commercial catalysts in the fields of photo-/electro-catalysis due to their unique electron...

The random movement and easy recombination of photoinduced charges lead to a low conversion efficiency for photocatalytic hydrogen evolution. The cocatalyst design is a promising route to address such problem through introducing an appropriate cocatalyst on the semiconductor photocatalysts to construct the high-efficiency heterojunctions. Herein, n...

The commercialization of high‐energy‐density alkali metal (Li, Na, and K)–chalcogen (S, Se, and Te) batteries (AMCBs) has been primarily hindered by the volume expansion of chalcogen cathodes during repeated charging/discharging cycles, the shuttling effect of intermediates in the electrolytes, and unstable alkali metal anodes. Owing to their uniqu...

Novel layered PbBiO2Cl material exhibited great application potential in the fields of photocatalytic energy conversion and environmental remediation. Unfortunately, the photocatalytic efficiency of pure PbBiO2Cl material is still far from the requirements of practical application due to insufficient light capture ability and rapid recombination of...

Cocatalysts Engineering for CO2 Reduction The CO2 reduction catalytic efficiency over low-dimensional photocatalysts is limited by two factors, poor surface charge separation efficiency and lack of surface-active sites. By engineering cocatalysts onto the low-dimensional photocatalysts can ameliorate these issues. In article number 2100046 by Zheng...

The inefficient charge separation and lack of active sites have been regarded as the main obstacles limiting the CO2 photoreduction efficiency. It is highly desirable but challenging to create a local polarization field to accelerate charge separation and build reactive sites for CO2 reduction dynamics. Herein, atomic level bismuth‐oxygen vacancy p...

Developing highly dispersed species has been regarded as an effective approach to achieve high catalytic performance. In this work, tungsten-containing precursor were control confined in porous channel of SBA-15. Profiting from the ionic liquid, quantum dots (such as WO3 QDs) in SBA-15 with highly dispersion can be obtained after thermal treatment....

Constructing highly efficient ultra-small nanomaterials to achieve nitrogen reduction without sacrificing reagents or additional photosensitizers is still challenging. Herein, one-step solvothermal method was used to tune Bi2Sn2O7 to the quantum dots (QDs), so as to tune the active sites on the surface and achieve the optimization of the energy ban...

Low-dimensional semiconductors have been regarded as alternative architectures to achieve high-efficiency photocatalytic CO2 reduction activity due to the unique structural and electronic properties. However, the catalytic efficiency is still limited by two factors, namely poor surface charge separation efficiency and lack of surface-active sites f...

Transition Metal Dichalcogenide Bilayers The cover page schematically illustrates the twisted transition metal dichalcogenides (t‐TMDs) bilayer and the associated Moiré superlattices which may give rise to exotic physical phenomena. In article number 2000153 by Haitao Yang, Jiadong Zhou, Zheng Liu and co‐workers, an update‐to‐date overview of the r...

In recent years, twisted two‐dimensional (2D) transition metal dichalcogenides (TMDs) have attracted tremendous research interests thanks to their intriguing properties that are essential in developing future electronic and photoelectronic devices in this modernizing era. This review aims to introduce recent developments in the preparation of twist...

Low-efficiency charge transfer is a critical factor to limit the photocatalytic H2 evolution activity of semiconductor photocatalysts. The interface design is a promising approach to achieve high charge-transfer efficiency for photocatalysts. Herein, a new 2D/2D atomic double-layer WS2/Nb2O5 shell/core photocatalyst (DLWS/Nb2O5) is designed. The at...

The cocatalyst design is a key approach to acquire high solar-energy conversion efficiency for photocatalytic hydrogen evolution. Here a new in-situ vapor-phase (ISVP) growth method is developed to construct the cocatalyst of 2D PtS nanorectangles (a length of ∼7 nm, a width of ∼5 nm) on the surface of g-C 3 N 4 nanosheets. The 2D PtS nanorectangle...

2D/2D MoS2/PbBiO2Cl nanosheet photocatalysts were successfully prepared via facile solvothermal and mechanical stirring approach. Through the optimization and verification of the proportion for each component, MoS2/PbBiO2Cl composites exhibited enhanced photocatalytic activity towards rose dye rhodamine B(RhB) and colorless antibiotic ciprofloxacin...

Photocatalytic CO2 reduction has been regarded as an appealing pathway for CO2 conversion to hydrocarbon fuels. To boost the CO2 photoreduction performance, developing suitable cocatalyst on the photocatalysts is an efficient strategy. Herein, Co2N is employed as novel noble-metal-free cocatalyst to promote the CO2 photoreduction performance of BiO...

Due to their fascinating strengths to boost light-absorption, charge transfer dynamics, and interface catalysis reactions, low-dimensional materials has been regarded as effective configurations for achieving excellent photocatalytic performance. Benefiting from these features, low-dimensional bismuth-based materials have acquired great progress in...

Direct water splitting over photocatalysts is a prospective strategy to convert solar energy into hydrogen energy. Nevertheless, because of the undesirable electron accumulation at the surface, the overall water‐splitting efficiency is seriously restricted by the poor charge separation/transfer ability. Here, an all‐organic donor–acceptor (D‐A) sys...

Covalent organic frameworks (COFs) are an emerging class of crystalline porous polymers with tailor-made structures and functionalities. To facilitate their utilization for advanced applications, it is crucial to develop a systematic approach to control the properties of COFs, including the crystallinity, stability, and functionalities. However, su...

As the continuation and advances in traditional BiOX (X = Cl, Br, I), bismuth-rich bismuth oxyhalides (BiaObXc) show distinct differences in the surface local atomic structure, electronic structure, optical properties, and electrical conductivity relative to BiOX. These features endow bismuth-rich BiaObXc with more tunable properties to achieve exc...

The relatively high recombination rate of charges remains the most critical limiting factor for solar‐driven water splitting for hydrogen generation. Herein, a tandem 0D/2D/2D NbS2 quantum dot/Nb2O5 nanosheet/g‐C3N4 flake (NSNOCN) system is designed. Owing to the unique spatial‐arrangement and elaborate morphology of 0D NbS2, 2D Nb2O5, and 2D g‐C3N...

Two-dimensional (2D) magnets with intrinsic ferromagnetic/antiferromagnetic (FM/AFM) ordering are highly desirable for future spintronic devices. However, the direct growth of their crystals is in its infancy. Here we report a chemical vapor deposition approach to controllably grow layered tetragonal and non-layered hexagonal FeTe nanoplates with t...

Increasing oily wastewater and frequent oil leakage accidents have become a serious global environmental problem. To improve the adsorption capacity and simplify the recovery process of crude oil, it is a great significance to develop various advanced oil adsorbents and oil-collecting devices. In this work, a lightweight and compressible three-dime...

MoS2 nanomaterial with the micro-pompon structure was synthesized by a surfactant-assisted hydrothermal method. The morphologies and structures of as-prepared MoS2 micro-pompon were investigated by adding different types of surfactants such as cetyltrimethyl ammonium bromide (CTAB), sodium dodecylbenzene sulphonate (SDBS), and polyvinyl pyrrolidone...

The effect of surface tensile strain on the photocatalysis is an open question. In this work, strain engineering has been demonstrated to promote the performance of photocatalysis by curved 2D materials into nanotubes. The surface atomic tensile strain in the Bi12O17Br2 nanotubes is evidenced by the complementary approaches of HAADF STEM imaging an...