In this study, the fate of carbon and nutrient elements; nitrogen, phosphorus, and potassium was investigated during the HTC of three model solutions with different nutrient concentrations to mimic biogas residues from silage and cattle manure. HTC was conducted at 180 °C, 220 °C, 240 °C, and 260 °C for 3 hour reaction time. ICP-OES, GC, IC, and chemical analysis methods were utilized to measure fertilizing

Photon absorption, charge separation and transportation, and charge-induced reactions at the active sites are the main crucial factors involved in the photoelectrochemical (PEC) water splitting. Herein, a combination of black phosphorus quantum dots (BPQDs) sensitization and defect engineering strategies is employed to optimize the PEC performance of 1D TiO2 nanotube arrays (NTAs) photoanode. The as-prepared

New bio-based molecularly imprinted polymers (MIPs) were synthesized as biopesticide delivery systems by free radical polymerization using a functional monomer and a vegetable oil-derived cross-linker, Epoxydized Soybean Acrylate (ESOA). Resveratrol, a polyphenol with antifungal activity against several phytopathogens was employed in this study as a model biopesticide. 4-Vinylpyridine (4VP) and 1-vinylimidazole

This study presents a new carrier for wax-based additives used in bitumen; the new carrier alleviates wax crystallization while improving bitumen’s cohesion, adhesion, and elastic properties. The abovementioned wax carrier is a newly developed nano zeolite, which is impregnated with paraffin wax to form a hybrid additive referred to as Winz. Bitumen containing Winz showed an improved resistance to

Using sodium bicarbonate (NaHCO3) as carbon source makes it possible to de-couple mixing and carbon supply in microalgae cultivation, and a periodical mixing may be sufficient to support rapid microalgae growth. To test this idea, growth of a screened Leptolyngbya sp. DUT 001 cultured with NaHCO3 was evaluated in a bubbling column photobioreactor. Firstly, culture medium of this strain was optimized

Aqueous two-phase systems (ATPSs) consist of two immiscible aqueous phases where the mole fraction of water in both upper and bottom phases is higher than 0.8. ATPS has been widely used in many different fields since its discovery in 1896. However, easy control of phase transition is highly desired in many cases, which is still a challenge. Herein, we report the first work for the reversible switching

Highly luminescent metal nanoclusters (MNCs) with aggregation-induced emission (AIE) have emerged as a new class of functional materials, which could be deployed to address challenge issues in diverse fields. In view of the wide application of white light-emitting diodes (WLEDs) but suffering from low color rendering index (CRI, ≤70) and chromaticity parameter drift, we report the development of a

The remarkably increasing consumption of lithium ion batteries (LIBs) has been an issue worldwide for the contained valuable metals and intrinsic toxicity in spent LIBs. Here, a novel process including selective leaching and precipitation has been developed for recovery of spent LIBs. The carbothermic reduction of spent LiNixCoyMn1-x-yO2 was applied to control the reduction degree of target metallic

A compact ethanol fuel processor with an all-in-one design of the auto-thermal reforming (ATR) and water-gas-shift (WGS) reactors was developed. The fuel processor has unique features, such as the annular-type reactors which are constructed by stacking disk-shaped Rh/Gd-doped-ceria-coated structured catalysts and insertion of an internal heat exchanger between the two reactors. This integration renders

Softwood mechanical pulps have proven quite recalcitrant to enzymatic hydrolysis. However, the unhydrolyzed, residual fibers might have potential as nanofibrillated cellulose feedstocks. In the work reported here a bleached softwood chemi-thermomechanical pulp (CTMP) was neutrally sulphonated (S-BCTMP) to try to enhance fiber accessibility and enzymatic hydrolysis. A 12 h hydrolysis at 10% solid loading

High thermal resistance frequently occurred at both filler-matrix and filler-filler interfaces lays down paramount bottlenecks for thermal management materials (TMMs). Herein, pony-size silver (Ag, 2-8 nm) nanoparticles are firstly constructed on nanodiamonds (NDs) with the assistance of environment-friendly polydopamine (PDA), rather different from larger Ag nanoparticles (AgNPs, 10-25 nm) simply

In order to resist the negative effects on Chlorella sp. growth caused by SO2 impurities and 15% CO2 in the flue gas from coal-fired power plants, exogenous spermidine, which possesses two amino terminal domains, was used to enhance antioxidant reactions, improve photosynthesis, protect the cell structure and repair the extracellular environment. The protective effect on Chlorella sp. growth exhibited

The development of scalable, green, aqueous-phase, nanomaterial synthesis routes that do not sacrifice the functional performance of the materials remains a persistent challenge. Bioinspired methodologies have proven effective for batchwise synthesis of highly functional nanomaterials but require scalable strategies for the recovery and reuse of costly enzymes. Herein, we demonstrate that facile immobilization

Renewable and sustainable thermosets with thermomechanical properties that are equivalent to, or better than, those of petroleum-derived commercial incumbents are desirable to mitigate environmental and human health impacts. Current bio-derivable or biobased thermosets typically are aliphatic/cycloaliphatic and lack the robust structural features necessary to generate materials competitive with those

Enzymatic conversion of CO2 to high-value chemicals is a green route of resource reutilization, which is limited by low solubility of CO2 in mild condition. Here, silica microspheres were firstly modified by the co-deposition of polyethyleneimine (PEI) and dopamine and the resultant polydopamine (PDA)/PEI-SiO2 was then used as the strengthening material of the enzymatic conversion of CO2 to formate

Iron-based fluorides, a kind of intercalation-conversion cathode materials, are considered as one of the most promising candidate cathode material for lithium ion battery due to its high capacity and cheap cost. Nevertheless, the poor electrical conductivity and sluggish reaction kinetic upon cycling impede their practical application. Herein, the Ni-doped FeF3·0.33H2O has been put forward and fabricated

Application of graphene (Gr) reinforced green waterborne epoxy (WEP) coatings face two major challenges. One is the usage of hydrophilic dispersants that can weaken the interactions between emulsifiers/WEP, resulting in demulsification of the WEP matrix. The other is the "corrosion-promotion activity (CPA)" originated from the high electric conductivity of Gr itself, which restricts the long-term anticorrosion

Morphology and crystal facet controlled Cu2O nanocrystals (NCs) including cubic Cu2O (c-Cu2O) NCs with {100} facets, rhombic dodecahedral Cu2O (d-Cu2O) NCs with {110} facets, and concave octahedral Cu2O (o-Cu2O) NCs with high-index facets, are prepared and employed as catalysts for the electrochemical reduction of CO2 to C2+ products (ethylene, ethanol, and n-propanol). In-situ Raman characterizations

Metal-organic frameworks (MOFs) have recently attracted intensive interests toward a variety of potential applications due to their very high porosity. However, the preparation of MOF films is tedious and involves complicated procedures. Herein, we report a simple and widely applicable strategy to fabricate uniform MOF layers on desired substrates via dopamine (DA) codeposition from neutral (pH = 7)

Conventional thermoset coatings are prepared from petrochemical feedstocks which are nonrenewable, and the resulting coatings are not repairable. To extent the service life and meet the sustainable demands, it is desirable to develop repairable coatings prepared from renewable feedstocks. Dynamic covalent chemistry can impart thermosetting polymers the repairability. However, such alternative polymers

The production of bio-fuel 2,5-dimethylfuran (DMF) from important biomass platform of 5-hydroxymethyl furfural (HMF) involves complicated reaction pathway due to the competition of C=O hydrogenation and C-O hydrogenolysis, however, the dependence of formed intermediates and catalytic sites needs to be further identified. Herein, we constructed a highly efficient and selective Cu/ZnO-Al2O3 catalyst

The bio-aqueous phase generated during biomass conversion to biofuel and bio-chemicals, e.g., fast pyrolysis and ex-situ catalytic pyrolysis, contains a large number of organics, leading to a high chemical oxygen demand (COD) for its treatment. In this study, we demonstrate its catalytic conversion to bio-acetic acid solution and propose a recycling strategy thereof. We found that diluted bio-aqueous

A successful changeover to a sustainable energy system that does not add extra CO2 to the atmosphere, a net-zero emissions energy system, is likely to depend on a combination of known technologies enabled by scalable and modular devices. In this article, we discuss prominent technological opportunities and barriers for an integrated approach to carbon capture and utilization (CCU) that can simultaneously

There is an urgent need for bio-based raw materials which are not food relevant and could serve as base for novel sustainable polymers. Menthene is such a potential material which is available in plenty from nature and also technically. We report here a challenging copolymerization of menthene oxide derived from menthene and CO2 in the presence of a β-diiminate zinc complex which resulted in high molecular

Green and sustainable polymeric-matrix composites have recently attracted much scientific and industrial attention. Naturally derived materials (e.g. chitin and cellulose) have been extensively studied due to their abundant availability and environmental appeal. Vitrimer, combining the properties of traditional thermosets and thermoplastics, has emerged as an attractive alternative for composite matrix

Introducing zinc stannate, ZnSnO3 (ZTO), layer on hydrothermally grown 3D-zinc oxide (ZnO) nanosheet thin films has been proven to have a quenching effect on the photoluminescence emissions, indicating very slow recombination of photo-induced electron-hole pairs in photoelectrochemical water splitting (PEC) reactions. Motivated by this, the ZnO/ZTO binary system has been used as the electron transport

As a key to realize chemical looping air separation (CLAS) process, CuO is a good oxygen carrier candidate due to its high oxygen transport capacity and excellent thermodynamic characteristics. However, it is hampered by easy deactivation during redox cycles. In this work, a Cu-Zr oxygen carrier is developed via a metal-organic framework (MOF) self-templated method to realize high redox reactivity

The electrochemical reduction of carbon dioxide to formate is an appealing carbon utilization method as it can be performed at room temperature and pressure, it only requires two electrons, and it has a high atom efficiency. This reaction has been known and studied for decades but currently there is no commercial process practiced. This Perspective compares over 500 experimental data points from 65