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Sodium carbonate

Jialing Tang, Xiaochang C Wang, Yisong Hu, Yunhui Pu, Jin Huang, Huu Hao Ngo, Yonggang Zeng, Yuyou Li
In this study, nitrogen removal using the lactic acid fermentation products from food waste and other external chemical carbon sources (sodium acetate, sodium lactate and starch) was investigated. Similar to sodium acetate and lactate, the lactic acid-enriched fermentation liquid from food waste (FLFW) exhibited a high denitrification rate (5.5 mg NO x -N/(g-VSS h)) and potential (0.16 g NO 3 - -N/g COD), and could achieve high NH 4 + -N and total nitrogen (TN) removal efficiencies during long-term operation...
February 8, 2018: Bioresource Technology
Yasaman Alinejad, Atma Adoungotchodo, Eve Hui, Fatemeh Zehtabi, Sophie Lerouge
Chitosan (CH) hydrogels with remarkable mechanical properties and rapid gelation rate were recently synthesized by combining sodium hydrogen carbonate (SHC) with another weak base, such as beta-glycerophosphate (BGP). To improve their biological responses, in the present study, chondroitin sulfate (CS) was added to these CH hydrogels. Hydrogel characteristics in terms of pH and osmolarity as well as rheological, mechanical, morphological and swelling properties were studied in the absence and presence of CS...
February 13, 2018: International Journal of Biological Macromolecules
Mo Han, Chenbo Zhu, Ting Ma, Zeng Pan, Zhanliang Tao, Jun Chen
We report an in situ analysis of nano-micro sodium deposition in an ester-based electrolyte using atomic force microscopy. It is found that sodium dendrites are effectively suppressed by adding fluoroethylene carbonate (FEC) as an electrolyte additive. The decomposition of FEC provides a NaF-containing solid electrolyte interphase with homogenous morphology and high modulus, leading to stable sodium deposition and high Coulombic efficiency (88% over 50 cycles) of the sodium metal anode.
February 16, 2018: Chemical Communications: Chem Comm
Jong-Kyu Park, Sun-Kyo Seo, Seungkwan Cho, Han-Sung Kim, Chi-Hwan Lee
Conductive hydrogels were prepared for biomedical patch in order to improve the electrical conductivity. Sodium polyacrylate and nano-sized carbon were mixed and fabricated by aqueous solution gelation process in various contents of nano-sized carbon with 0.1, 0.5, 1.0 and 2.0 wt%. Sodium polyacrylate/nano-sized carbon conductive hydrogels were investigated by molecular structure, surface morphology and electrical conductivity. The conductivity of the hydrogel/nano-sized carbon conductive hydrogel proved to be 10% higher than conductive hydrogel without nano-sized carbon...
March 1, 2018: Journal of Nanoscience and Nanotechnology
Philipp F Secker, Sascha Beneke, Nadja Schlichenmaier, Johannes Delp, Simon Gutbier, Marcel Leist, Daniel R Dietrich
Recent FDA Drug Safety Communications report an increased risk for acute kidney injury in patients treated with the gliflozin class of sodium/glucose co-transport inhibitors indicated for treatment of type 2 diabetes mellitus. To identify a potential rationale for the latter, we used an in vitro human renal proximal tubule epithelial cell model system (RPTEC/TERT1), physiologically representing human renal proximal tubule function. A targeted metabolomics approach, contrasting gliflozins to inhibitors of central carbon metabolism and mitochondrial function, revealed a double mode of action for canagliflozin, but not for its analogs dapagliflozin and empagliflozin...
February 14, 2018: Cell Death & Disease
Tianyu Xiang, Feng Xin, Can Zhao, Shuo Lou, Wenxiu Qu, Yong Wang, Yuexiao Song, Shuangfang Zhang, Xiaohong Yin
A synthetic process was exploited to fabricate patchy CuO evenly planted on cubic NaTaO 3 for photocatalytically reducing CO 2 in isopropanol. The nano patches of CuO with about 15 nm in size were uniformly distributed on the surface of NaTaO 3 via a phase-transfer protocol and solvothermal synthesis. The crystal phase, morphology, composition, optical absorption and charge separation of as-prepared CuO-NaTaO 3 were characterized by XRD, SEM, TEM, EDX, XPS, UV-Vis and PL. The results of photocatalytic reduction of CO 2 confirmed that the CuO patched NaTaO 3 possessed better ability to separate charge carriers and selectively reduce CO 2 to methanol than CuO directly loaded NaTaO 3 using the traditional liquid phase reduction procedure after comparing the methanol yields...
February 1, 2018: Journal of Colloid and Interface Science
Argyrios Karatrantos, Sharif Khan, Tomonori Ohba, Qiong Cai
In this study fully atomistic grand canonical Monte Carlo (GCMC) simulations have been employed to study the behaviour of an electrolyte salt (NaPF6) and different non-aqueous (organic) solvents in carbon nanopores, to reveal the structure and storage mechanism. Organic solutions of Na+ and PF6- ions at 1 M concentration were considered, based on the conditions in operational sodium ion batteries and supercapacitors. Three organic solvents with different properties were selected: ethylene carbonate (EC), propylene carbonate (PC), and ethyl methyl carbonate (EMC)...
February 13, 2018: Physical Chemistry Chemical Physics: PCCP
Xiang Hu, Yan Li, Guang Zeng, Jingchun Jia, Hongbing Zhan, Zhenhai Wen
The exploration of anode materials for lithium ion batteries (LIBs) or sodium ion batteries (SIBs) represents a grand technological challenge to meet the continuously increased demand for high-performance energy storage market. Here we report a facile and reliable synthetic strategy for in situ growth of few-layer MoS2 nanosheets on reduced graphene oxide (rGO) crosslinked hollow carbon spheres (HCS) with forming three dimensional (3D) network nanohybrids (MoS2-rGO/HCS). Systematic electrochemical studies demonstrate, as anode of LIBs, the as-developed MoS2-rGO/HCS can deliver a reversible capacity of 1145 mAh g-1 after 100 cycles at 0...
February 12, 2018: ACS Nano
Yan Yu, Xiongwu Zhong, Ying Wu, Sifan Zen
Sodium ion batteries (SIBs) have attracted much attention for application in large-scale grid energy storage due to the abundance and low-cost sodium sources. However, the low energy density and poor cycling life hinder the practice application of SIBs. Recently, substantial efforts have been made to develop electrode materials to push forward large-scale practical application. Carbon materials can be directly used as anode materials, showing excellent sodium storage performance. Additionally, designing and constructing carbon hybrid materials is an effective strategy to obtain high-performance anodes for SIBs...
February 12, 2018: Chemistry, An Asian Journal
Natalie Wilhelm, Anya Kaufmann, Elizabeth Blanton, Daniele Lantagne
Household water treatment with chlorine can improve the microbiological quality of household water and reduce diarrheal disease. We conducted laboratory and field studies to inform chlorine dosage recommendations. In the laboratory, reactors of varying turbidity (10-300 NTU) and total organic carbon (0-25 mg/L addition) were created, spiked with Escherichia coli, and dosed with 3.75 mg/L sodium hypochlorite. All reactors had >4 log reduction of E. coli 24 hours after chlorine addition. In the field, we tested 158 sources in 22 countries for chlorine demand...
February 2018: Journal of Water and Health
Caiyan Gao, Guangming Chen
Although composites of organic polymers or n-type small molecule/carbon nanotube (CNT) have achieved significant advances in thermoelectric (TE) applications, p-type TE composites of small organic molecules as thick surface coating layers on the surfaces of inorganic nanoparticles still remain a great challenge. Taking advantage of in situ oxidation reaction of thieno[3,4-b]pyrazine (TP) into TP di-N-oxide (TPNO) on single-walled CNT (SWCNT) surface, a novel synthesis strategy is proposed to achieve flexible films of TE composites with narrow-bandgap (1...
February 9, 2018: Small
Davor Copic, Laura Maggini, Michael De Volder
Carbon nanotube (CNT)-based filters have the potential to revolutionize water treatment because of their high capacity and fast kinetics in sorption of organic, inorganic, and biological pollutants. To date, CNT filters either rely on CNTs dispersed in liquids, which are difficult to recover and cause safety concerns, or on CNT buckypaper, which offers high efficiency, but suffers from an intrinsic trade-off between filter permeability and capacity. Here, a new approach is presented that bypasses this trade-off and achieves buckypaper-like efficiency combined with filter-column-like permeability and capacity...
February 9, 2018: Advanced Materials
Chaokun Liu, Jiangtao Hu, Luyi Yang, Wenguang Zhao, Hejie Li, Feng Pan
A low-surface-area nitrogen-doped carbon nanomaterial was prepared via a facile annealing method, which shows good Na-ion storage ability (334 mA g-1) and coulombic efficiency due to its mixed charge-discharge mechanism and unique structural features.
February 9, 2018: Chemical Communications: Chem Comm
Chenpei Yuan, Qiong Wu, Qi Shao, Qiang Li, Bo Gao, Qian Duan, Heng-Guo Wang
Free-standing and flexible organic cathode based on aromatic carbonyl compound/carbon nanotubes (CNTs) has been successfully synthesized by a simple vacuum filtration strategy. The obtained flexible and free-standing film could be directly used as the binder-, additive- and current collector-free cathode for lithium ion batteries (LIBs) and sodium ion batteries (SIBs). Benefitting from the synergistic effect provided by the aromatic carbonyl compound and CNTs, the flexible organic cathode shows excellent lithium and sodium storage properties, including high reversible capacity (∼150 mAh g-1 at 50 mA g-1 for LIBs and 57...
January 31, 2018: Journal of Colloid and Interface Science
Jae-Min Cho, Sun-Mi Yun, Young-Ho Choi, Jinyuk Heo, Nam-Jung Kim, Seok-Ho Kim, Eun-Hee Kim
Xanthohumol (XN), a prenylated chalcone isolated from the hop plant, has been reported to exhibit multiple biological functions including anti-inflammation. However, the pharmacological function of XN on colitis remains unknown. In this study, we investigated the anti-inflammatory effect of synthesized XN and molecular mechanism on dextran sulfate sodium (DSS)-induced experimental colitis. XN attenuated the colitis symptoms along with the prevention of colonic lesions after DSS challenge. XN inhibited the production of pro-inflammatory cytokines, oxidative stress and cyclooxygenase-2 expression in DSS-treated mice...
January 2, 2018: Oncotarget
Na Li, Xin-Xin Liu, Mei Hong, Xin-Zhou Huang, Hui Chen, Jia-Huan Xu, Chao Wang, Yan-Xiang Zhang, Ji-Xin Zhong, Hao Nie, Quan Gong
Sodium butyrate (SB) is a short chain 4-carbon fatty acid salt naturally exists in animal fats. Previous studies have proven that sodium butyrate has many beneficial functions such as anti-tumor and anti-inflammatory actions. In the current study we investigated the effect and possible mechanism of sodium butyrate in LPS-induced acute lung injury (ALI). ALI was induced by intratracheal administration of LPS (10 mg/kg) in male BALB/c mice. Sodium butyrate (500 mg/kg) was administered intraperitoneally 30 min prior to LPS exposure...
January 29, 2018: International Immunopharmacology
Jianguo Zhao, Yahe Li, Xiurong Chen, Yu Li
Considering carbon sources are often supplied to satisfy the removal of high nitrogen and refractory pollutants in industrial wastewater, two sequencing batch reactors (SBRs) were used in this study to treat 1.5 ± 0.5 mg/L 4-chlorophenol (4-CP) wastewater containing ammonium nitrogen and phosphate with different carbon sources. The favorable removal efficiencies of influent COD, NH4+-N, PO43--P, and 4-CP suggested that the both SBRs were not influenced by supplying dissolved starch and sodium acetate, respectively...
January 30, 2018: Bioresource Technology
Neha Maheshwari, Madan Kumar, Indu Shekhar Thakur, Shaili Srivastava
Carbon dioxide sequestering bacterial strains were previously isolated from free air CO2 enriched (FACE) soil. In the present study, these strains were screened for PHA accumulation and Bacillus cereus SS105 was found to be the most prominent PHA accumulating strain on sodium bicarbonate and molasses as carbon source. This strain was further characterized by Spectrofluorometric method and Confocal microscopy after staining with Nile red. PHA granules in inclusion bodies were visualized by Transmission Electron Microscopy...
January 3, 2018: Bioresource Technology
Eleanor Raper, Raymond Fisher, David R Anderson, Tom Stephenson, Ana Soares
The Industrial Emissions Directive (IED) requires that coke wastewater is treated to reach an effluent with <50 mg/L total nitrogen (TN). A shortage of alkalinity (3.6 mg as CaCO3/mg NH4+-N) in the wastewater limited nitrification to 45%. Various compounds were tested as a source of additional alkalinity, with optimal results being found for sodium carbonate, which enabled 95% nitrification at 300 mg/L (as CaCO3). Sodium bicarbonate led to incomplete ammonia oxidation (76%) whilst soda ash prevented nitrite oxidation...
February 7, 2018: Environmental Technology
Jung-Soo Lee, Yoonjee Chang, Eun-Sil Lee, Hong-Geon Song, Pahn-Shick Chang, Jaejoon Han
A nonferrous oxygen scavenger (NFOS) comprising activated carbon and sodium l-ascorbate was developed to enhance the preservative efficacy of raw meatloaves. To determine the optimum formulation of activated carbon and sodium l-ascorbate, NFOSs with varying ratios of components (1:1, 1:1.2, 1:1.4, 1:1.6, 1:1.8, and 1:2, w/w) were prepared and their oxygen-scavenging volumes were measured over 4 d at 25 °C. Assays of oxygen-scavenging capacities indicated that the optimum NFOS formulation of activated carbon and sodium l-ascorbate was achieved at a ratio of 1:1...
February 7, 2018: Journal of Food Science
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