Diethyldithiocarbamate Research Articles

The effect of collectors on froth stability of frother: Atomic-scale study by experiments and molecular dynamics simulations

The effect of sodium diethyldithiocarbamate (DDTC)/butyl xanthate (BX) on froth stability formed by methyl isobutyl carbinol (MIBC) was investigated using experiments and molecular simulations, and the mechanism of the effect of differently structured collectors on the interfacial water at the gas–liquid interface was discovered. The froth stability indicated that DDTC and BX could considerably reduce the solution surface tension, increase the froth half-life, and maximum froth layer volume compared with MIBC solutions. Particularly, in the BX-containing system, the froth half-life reached an astonishing 160 s, and the maximum froth layer volume reached 270 ml. To explain this observation, this study used molecular simulations to provide new insights into the interactions between DDTC/BX and MIBC and water at the molecular level. The results demonstrate that the density of water molecules at the interface of the DDTC/BX solution is higher than that of the MIBC solution, the orientation of water molecules at the interface is more ordered, and the hydrogen bonds are more tightly connected. The results are consistent with the experimental data, demonstrating that DDTC/BX improves the significance of MIBC on water molecule rearrangement at the gas–liquid interface. This study can offer a reference for studying the effect of collector structure on frother performance and can offer important guidance for the design of mineral flotation reagents.

Synchronous Surface Reconstruction and Defect Passivation for High-Performance Inorganic Perovskite Solar Cells.

The nonradiative charge recombination caused by surface defects and inferior crystalline quality are major roadblocks to further enhancing the performance of CsPbI3- x Brx perovskite solar cells (PSCs). Theoretical calculations indicate that sodium diethyldithiocarbamate (NaDDTC), a popular bacteriostatic benign material, can initiate multiple interactions with the CsPbI3- x Brx perovskite surface to effectively passivate the defects. The experimental results reveal that the NaDDTC can indeed passivate the electron trap states and lock active sites for charge traps and water adsorption. In addition, it is found that a solid-state reaction is triggered for perovskite crystal regrowth by the NaDDTC post-treatment, which not only enlarges grain size for reducing the density of grain boundary defects but also compensates some surface defects induced by the primary film growth. Consequently, the power conversion efficiency (PCE) of the CsPbI3- x Brx PSC is increased to as high as 20.40%, with significant improvement in fill factor and open-circuit voltage (VOC ), making it one of the highest for this type of solar cell. Furthermore, the optimized devices exhibit better environmental stability. Overall, this robust synchronous strategy provides efficient surface reconstruction and defect passivation for achieving both high PCE and stable inorganic perovskite.

A Stimuli‐Responsive Small‐Molecule Metal‐Carrying Prochelator: A Novel Prodrug Design Strategy for Metal Complexes

AbstractSelective activation of prodrugs is an important approach to reduce the side effects of disease treatment. We report a prodrug design concept for metal complexes, termed “metal‐carrying prochelator”, which can co‐carry a metal ion and chelator within a single small‐molecule compound and remain inert until it undergoes a specifically triggered intramolecular chelation to synthesize a bioactive metal complex in situ for targeted therapy. As a proof‐of‐concept, we designed a H2O2‐responsive small‐molecule prochelator, DPBD, based on the strong chelator diethyldithiocarbamate (DTC) and copper. DPBD can carry Cu2+ (DPBD‐Cu) and respond to elevated H2O2 levels in tumor cells by releasing DTC, which rapidly chelates Cu2+ from DPBD‐Cu affording a DTC–copper complex with high cytotoxicity, realizing potent antitumor efficacy with low systemic toxicity. Thus, with its unique intramolecularly triggered activation mechanism, this concept based on a small‐molecule metal‐carrying prochelator can help in the prodrug design of metal complexes.

A Stimuli-Responsive Small-Molecule Metal-Carrying Prochelator: A Novel Prodrug Design Strategy for Metal Complexes.

Selective activation of prodrugs is an important approach to reduce the side effects of disease treatment. We report a prodrug design concept for metal complexes, termed "metal-carrying prochelator", which can co-carry a metal ion and chelator within a single small-molecule compound and remain inert until it undergoes a specifically triggered intramolecular chelation to synthesize a bioactive metal complex in situ for targeted therapy. As a proof-of-concept, we designed a H2 O2 -responsive small-molecule prochelator, DPBD, based on the strong chelator diethyldithiocarbamate (DTC) and copper. DPBD can carry Cu2+ (DPBD-Cu) and respond to elevated H2 O2 levels in tumor cells by releasing DTC, which rapidly chelates Cu2+ from DPBD-Cu affording a DTC-copper complex with high cytotoxicity, realizing potent antitumor efficacy with low systemic toxicity. Thus, with its unique intramolecularly triggered activation mechanism, this concept based on a small-molecule metal-carrying prochelator can help in the prodrug design of metal complexes.

Stabilization of heavy metals from lead-zinc ore tailings with sodium diethyl dithiocarbamate functionalized montmorillonite (DDTC-Mt): Leaching characteristics and remediating mechanism

The mining and processing of lead-zinc ores produce many lead-zinc ore tailings, which can cause harm by releasing toxic metal ions to the environment. Therefore, the leaching characteristics, acid generation capacity, and fractions of released heavy metals from two Pb-Zn tailings, one from Guangxi designated as F and another from Inner Mongolia designated as YD, have been investigated in this work. Here, sodium diethyl dithiocarbamate functionalized montmorillonite (DDTC-Mt) was synthesized to remediate both F and YD tailings. It was found that YD tailings have a stronger acid generation potential than F tailings, and both of them could be further oxidized and release acid. Moreover, YD showed a certain buffering capacity to acid rain due to its higher calcite content, while the leaching amounts of heavy metals from F was larger than YD resulting from the former’s higher weathering degree. DDTC-Mt resulted in a superior stabilization performance to Zn, Mn and Pb from both tailings with optimal stabilization ratios, which are all above 94%. The remediating effect of DDTC-Mt on F was better than that of YD, which could be ascribed to the fact that F contained lower amount of carbonate minerals because of a higher degree of weathering in the latter. The leaching amounts and stabilization ratios of the four elements increased with increasing time and dose of DDTC-Mt, however, temperature and pH showed little or no effect. Mineralogical analysis showed minerals in F and YD before and after leaching were mainly quartz, while the contents of sphalerite and pyrite in F-DDTC-Mt and YD-DDTC-Mt decreased although they were more than those in F and YD without DDTC-Mt after leaching for 72 h. DDTC-Mt could inhibit the release of heavy metals to a certain extent by covering the surface of tailings via complexation and precipitation. Furthermore, DDTC-Mt coating can prevent the oxidation of tailings.

Steel slag as a cost-effective adsorbent for synergic removal of collectors, Cu(II) and Pb(II) ions from flotation wastewaters

Flotation reagents and heavy metal ions always coexist in mineral flotation wastewaters, arousing serious environmental issues or having deleterious effects on mineral flotation. In this work, the steel slag was adopted as a cost-effective adsorbent to synergically remove butyl xanthate (BX), diethyl dithiocarbamate (DDTC), Cu(II) and Pb(II) ions. At the steel slag dosage of 12.0 g/L, Cu(II) and Pb(II) concentrations decreased from 4.0 mg/L to below 10.0 μg/L, and the removal of COD reached 54.33%. The removal efficiency of COD increased from 11.36% to 57.49% as Cu(II) and Pb(II) concentrations rose from 0 to 8.0 mg/L, revealing the promotion effects of metallic ions on collector adsorption. The maximum uptake capacity of steel slag reached 110.45 and 160.48 mg/g for Cu(II) and Pb(II), respectively. The collector adsorption capacity of steel slag increased nearly two magnitudes after modifying with the uptake of Cu(II) or Pb(II) ions. The SEM/EDS, XPS and FTIR analysis indicated that steel slag could be in-situ modified to generate copper or lead hydroxides and oxides during the removal of Cu(II) and Pb(II) ions. Subsequently, these precipitates acted as reactive sites for chelating BX and DDTC to form indissolvable metal-collector chelates. Owing to in-situ modification of steel slag by uptaking metallic ions, the adsorption was potentially feasible for treating flotation wastewaters.

Taking Advantage of Teamwork: Unsupported Cobalt Molybdenum Sulfide as an Active HER Electrocatalyst in Alkaline Media

A bimetallic cobalt molybdenum sulfide (Co0.5Mo0.5Sx) material was studied as candidate electrocatalyst to replace platinum-based cathode for HER reaction in alkaline media. The Co0.5Mo0.5Sx was obtained from a hydrothermal synthesis methodology employing sodium diethyldithiocarbamate as sulfurizing agent, a non-conventional compound. The recovered sulfide material was physicochemically characterized by XRD, Raman spectroscopy, TEM and XPS measurements. Analogous monometallic sulfides were also synthesized to compare their HER activities to that of Co0.5Mo0.5Sx. Such electrochemical characterization was performed by the application of polarization and EIS analyzes in 1 M KOH. An evident synergistic effect emerged in the bimetallic sulfide and it was associated with the design of a catalyst less susceptible to air-oxidation added to the roles performed by cobalt- and molybdenum-based species in the HER mechanism. Finally, a physical mixture of Co0.5Mo0.5Sx and Carbon Vulcan was prepared aiming to enhance the electronic conductivity of the electrode. As result, an overpotential of 131 mV was requested to achieve −10 mA cm−2. In addition, to achieve −200 mA cm−2, this electrode only needed an overpotential 66 mV higher than the one necessary for the benchmarking 40% Pt/C electrocatalyst.

Effect mechanism of carbonaceous materials on the flotation separation of lead–zinc ore

The associated carbonaceous material in ore will deteriorate the flotation process. However, only a few studies have been conducted on the properties of carbonaceous materials in lead–zinc ore flotation. The properties and adsorption performance of carbonaceous materials remain unclear. In this study, the closed-circuit flotation of bench-scale experiments shows that carbon pre-flotation can improve the grade and recovery of lead. The properties of the enriched carbonaceous materials were analysed. Amorphous carbon accounts for 99.70% of the total carbon in the concentrate. The structure of amorphous carbon is similar to the properties of coal, which has rich aromatic rings, carbonyl, and hydrocarbyl. Moreover, amorphous carbon has abundant pore structures with a specific surface area of 16.18 m2/g and an average pore diameter of 12.94 nm. The adsorption isotherm of diethyl dithiocarbamate (DDTC) onto amorphous carbon fits the Freundlich model well. The pseudo-second-order (PSO) model can better interpret the adsorption process. The adsorption capacity of amorphous carbon for DDTC is superior to that of galena, leading to the depletion of DDTC in the flotation pulp.

Reactive oxygen species-activated self-amplifying prodrug nanoagent for tumor-specific Cu-chelate chemotherapy and cascaded photodynamic therapy

Disulfiram (DSF), an effective FDA-approved anti-alcoholism drug, shows potent antitumor activity by producing Cu(DTC)2, a chelate of its metabolite diethyldithiocarbamate (DTC) and copper. However, the rapid metabolism and unselective distribution of DSF and the insufficient endogenous copper severely restrict enough bioactive Cu(DTC)2 generation in tumor tissues to achieve satisfactory antitumor effect. Moreover, directly Cu(DTC)2 administration also suffers from serious systemic toxicity. Herein, a reactive oxygen species (ROS)-activatable self-amplifying prodrug nanoagent (HA-DQ@MOF) was developed for the stable co-delivery of DTC prodrug and Cu-quenched photosensitizer, aiming to achieve tumor-specific dual-activation of highly-toxic Cu(DTC)2-mediated chemotherapy and cascaded photodynamic therapy (PDT). The ROS-cleavable hyaluronic acid-conjugated DTC prodrug (HA-DQ) was decorated on Cu2+ and photosensitizer Zn-TCPP coordinated MOF (PDT-shielded state) to construct HA-DQ@MOF. HA-DQ@MOF could specifically activated in ROS-overexpressed tumor cells to rapidly release DTC, while remaining relatively stable in normal cells. The free DTC immediately grabbed Cu2+ from MOF to in situ generate highly-cytotoxic Cu(DTC)2 chelate, accompanied by MOF dissociation to restore the PDT effect of Zn-TCPP. Importantly, ROS produced by PDT could in turn trigger more DTC release, which further promoted Zn-TCPP liberation, forming a self-amplifying prodrug/photosensitizer activation positive feedback loop. Experimental results confirmed the dual-activated and combined tumor-killing effect of Cu(DTC)2-mediated chemotherapy and Zn-TCPP-based PDT with little systemic toxicity. This work provides a dual-activated “low toxic-to-toxic” transformable treatment pattern for tumor-specific chemo-photodynamic therapy.

Synthesis of ternary copper antimony sulfide via solventless thermolysis or aerosol assisted chemical vapour deposition using metal dithiocarbamates

Copper antimony sulfide (Cu-Sb-S) has recently been proposed as an attractive alternative photovoltaic material due to the earth-abundant and non-toxic nature of the elements, high absorption coefficients and band gaps commensurate with efficient harvesting of solar photonic flux across multiple phases of Cu-Sb-S. These materials are therefore highly desirable and sustainable and scalable deposition techniques to produce them are of interest. In this paper, we demonstrate two facile, low-temperature and inexpensive techniques (solventless thermolysis and aerosol-assisted chemical vapor deposition (AACVD)) for the preparation of binary digenite (Cu1.8S), chalcocite (Cu2S) and stibnite (Sb2S3) and several phases of ternary copper-antimony-sulfide (Cu2xSb2(1−x)Sy, where 0 ≤ x ≤ 1). It was found that by utilising these different techniques and varying the ratio of Cu:Sb, pure phases of ternary chalcostibite (CuSbS2), fematinite (Cu3SbS4) and tetrahedrite (Cu12Sb4S13) can be achieved. Two single-source precursors were investigated for this purpose, namely the diethyldithiocarbamate (DTC) complexes of copper and antimony Cu(DTC)2 and Sb(DTC)3. These were decomposed both individually (to produce binary materials) and combined (to produce ternary materials) at different ratios. From the solventless thermolysis and AACVD methods, either particulate or thin film material was formed, respectively. These materials were then characterised by powder XRD, SEM, EDX and Raman spectroscopies to determine the crystalline phase, material morphology and uniformity of elemental composition. This analysis demonstrated that as the Cu-content increases, the phase of the ternary material changes from chalcostibite (CuSbS2) and fematinite (Cu3SbS4) at a low Cu:Sb ratio to tetrahedrite (Cu12Sb4S13) at a high Cu:Sb ratio.

Development of sulfurized Polythiophene-Silver Iodide-Diethyldithiocarbamate nanoflakes toward Record-High and selective absorption and detection of mercury derivatives in aquatic substrates

Large-scale disposal of mercury derivatives via industries into the ecosystem created ever-lasting pollution in nature that could lead to bioaccumulation and put living species' lives in danger; hence, it is vital to remove these hazardous pollutants using practical approaches. Herein, this requirement is addressed by developing a 2D absorber with active sulfur domains composed of polythiophene (PT), AgxIx, and sodium diethyldithiocarbamate (PT-AgI-D). The developed configuration exhibited record-high absorption capacity and Femto molar-level sensitivity toward absorption and detection of mercury derivatives, viz., Hg metallic (Hg (m)), HgCl2, and HgO. Accordingly, the PT-AgI-D showed a superior removal capacity of 733.7, 186.6, and 299.4 mg g−1 toward the absorption of Hg (m), HgCl2, and HgO from aquatic media, respectively, with a yield of 99% at optimum conditions. More importantly, the absorber exhibited a detection limit (DL)/sensitivity of 11.86/79.57, 20.04/44.62, and 32.83/35.11 fM/(µA/fM) cm−2 toward Hg (m), HgCl2, and HgO, respectively. Furthermore, precise assessments revealed favorable reproducibility, selectivity, stability, and reusability of the absorber even after 20 adsorption–desorption cycles, highlighting its superior performance in removing mercury derivatives from aquatic media.

The physicochemical mechanism of iron removal of aluminum sulfate solution by a novel synthesis process

Titanium dioxide is widely used as a pigment in industrial processes and life, and the mechanical strength of the coating of titanium dioxide is of vital importance for its quality. The content of iron impurities in aluminum sulfate coatings directly affects their quality; therefore, the removal of iron from aluminum sulfate solutions is of paramount importance. In this study, an aluminum sulfate solution containing iron (18 mg/L) was used as a raw material to explore a composite process to reduce iron content to< 5 mg/L for coating high-quality titanium dioxide products. A novel process consisting of sodium diethyldithiocarbamate (DDTC) complexation–precipitation, flocculation by cationic polyacrylamide, and ultrafiltration have been proposed in this study. The reactant structure and thermodynamic equilibrium were determined by quantum chemical calculations to clarify the mechanism of selective iron removal using organic precipitants. The effects of DDTC dosage, reaction temperature, reaction time, stirring speed, and ultrafiltration membrane specifications on iron removal were systematically investigated. The physical and chemical properties of the precipitated particles were analyzed by zeta potential, scanning electron microscopy (SEM), and atomic force microscopy (AFM) before and after the addition of flocculants. Before adding the flocculant, the surface zeta potential of the precipitated particles was negative, and the cationic flocculant was added to neutralize the surface charge, eliminate the electrostatic repulsion, and promote the flocculation of precipitated particles for growth; this is beneficial for ultrafiltration. Furthermore, the experimental conditions were optimized to achieve the lowest iron content of 3.8 mg/L in the solution. Finally, the reaction mechanism of the organic precipitation—cationic flocculation—ultrafiltration complex was elucidated.

In Vitro Validation of Antiparasitic Activity of PLA-Nanoparticles of Sodium Diethyldithiocarbamate against Trypanosoma cruzi.

Trypanosoma cruzi is a protozoan parasite responsible for Chagas disease, which affects millions around the world and is not treatable in its chronic stage. Sodium diethyldithiocarbamate is a compound belonging to the carbamate class and, in a previous study, demonstrated high efficacy against T. cruzi, showing itself to be a promising compound for the treatment of Chagas disease. This study investigates the encapsulation of sodium diethyldithiocarbamate by poly-lactic acid in nanoparticles, a system of biodegradable nanoparticles that is capable of reducing the toxicity caused by free DETC against cells and maintaining the antiparasitic activity. The nanosystem PLA-DETC was fabricated using nanoprecipitation, and its physical characterization was measured via DLS, SEM, and AFM, demonstrating a small size around 168 nm and a zeta potential of around −19 mv. Furthermore, the toxicity was determined by MTT reduction against three cell lines (VERO, 3T3, and RAW), and when compared to free DETC, we observed a reduction in cell mortality, demonstrating the importance of DETC nanoencapsulation. In addition, the nanoparticles were stained with FITC and put in contact with cells for 24 h, followed by confirmation of whether the nanosystem was inside the cells. Lastly, the antiparasitic activity against different strains of T. cruzi in trypomastigote forms was determined by resazurin reduction and ROS production, which demonstrated high efficacy towards T. cruzi equal to that of free DETC.

Leaching characteristics and stabilization of heavy metals in tin-polymetallic tailings by sodium diethyl dithiocarbamate intercalated montmorillonite (DDTC-Mt)

There are a large number of tailings left over by industrial development the world over and the tailings are harmful to the environment for a long time, so it is very important to study how to reduce environmental pollution from tailings. Here, the acid producing potential of three types of tin polymetallic tailings from the same locality with different degrees of weathering and the forms of heavy metals that exist in these tailings were studied. The effects of pH of simulated acid rain, temperature and time on the leaching of heavy metals from the different tailings were investigated along with their leaching characteristics. In addition, stabilization mechanism of heavy metals was analyzed from the kinetic and microscopic aspects. The potential application of sodium diethyldithiocarbamate intercalated montmorillonite (DDTC-Mt) was studied for stabilizing tin polymetallic tailings. The leaching of heavy metals in tailings is mainly due to the oxidation of tailings, which in turn is closely related to the acid producing potential of tailings and the existing forms of heavy metals in them. The stabilization of heavy metals by DDTC-Mt is mainly due to coordination between DDTC and heavy metals in the interlayer of montmorillonite. DDTC-Mt revealed a superior stabilization property in remediation of heavy metals from tin-polymetallic tailings with high acid producing potential by enhancing the stability of heavy metals in tailings, for example, the stabilization rates of Mn and Zn were 89.11% and 93.89%, respectively.

Comparison Studies on Several Ligands Used in Determination of Cd(II) in Rice by Flame Atomic Absorption Spectrometry after Ultrasound-Assisted Dispersive Liquid-Liquid Microextraction.

Ligands plays an important role in the extraction procedures for the determination of cadmium in rice samples by using flame atomic absorption spectrometry (FAAS). In the present study, comparative evaluation of 10 commercially available ligands for formation of Cd(II)-ligand complex and determination of cadmium in rice samples by ultrasound-assisted dispersive liquid–liquid microextraction (UADLLME) combined with FAAS was developed. Sodium diethyldithiocarbamate (DDTC) provided a high distribution coefficient as well as a good absorbance signal, therefore DDTC was used as a ligand in UADLLME. A low density and less toxic solvent, 1-heptanol, was used as the extraction solvent and ethanol was used as the disperser solvent. In addition, the experimental conditions of UADLLME were optimized in standard solution first and then applied in rice, such as the type and volume of extractant and dispersant, pH, extraction time, and temperature. Under the optimal experimental conditions, the detection limit (3σ) was 0.69 μg/L for Cd(II). The proposed method was applied for the determination of Cd(II) in three different rice samples (polished rice, brown rice, and glutinous rice), the recovery test was carried out, and the results ranged between 96.7 to 113.6%. The proposed method has the advantages of simplicity, low cost, and accurate and was successfully applied to analyze Cd(II) in rice.

Ultratrace mercury speciation analysis in rice by in-line solid phase extraction – liquid chromatography – atomic fluorescence spectrometry

For the first time, Hg2+ and methylmercury speciation analysis was accomplished by in-line SPE-LC-AFS. After modification with 0.1 mL of 0.001% (m:v) sodium diethyldithiocarbamate, a C18 microcolumn retained Hg2+ and MetHg in rice extract within 3 min; the captured Hg species were separated within 12 min in 0.25% (v:v) 2-mercaptoethanol + 60 mmol L-1 (m:v) ammonium acetate + 4% (v:v) acetonitrile. Under optimized conditions, the detection limits were 0.3 ng L−1 for Hg2+ and 0.2 ng L−1 for MetHg, respectively, with 10 mL injection vs. 0.1 mL eluent; in-line SPE achieved ∼ 100x enrichment. Method precision and accuracy were satisfactory at < 2% relative standard deviations (RSDs) for 20 ng L−1 of Hg2+ and MetHg and 95-102% recoveries for real rice samples. In-line SPE obviated human involvement and avoided invalid transportation between interfaces, rendering this SPE-LC-AFS method easy, compact, robust, yet sensitive in mercury speciation analysis to uphold food safety.

Jasmonic acid biosynthetic genes TgLOX4 and TgLOX5 are involved in daughter bulb development in tulip (Tulipa gesneriana).

Tulip bulbs are modified underground stems that originate from axillary meristems of mother bulb scales. Hormones, including jasmonic acids (JAs), play key roles in the regulation of tulip bulb development. Here, we compared variations in daughter bulb development through transcriptomic profiling analysis and characterized the functions of JA biosynthesis-related genes during daughter bulb enlargement. The results showed that tulip cultivars exhibited contrasting bulb size variations. Transcriptomic analyses revealed that genes involved in plant hormones and development, including the two lipoxygenase genes TgLOX4 and TgLOX5, showed significant changes in expression following tulip bulb growth. Ectopic overexpression of TgLOX4 and TgLOX5 in Arabidopsis enhanced endogenous JA content, improved plant growth, and increased lateral root numbers. Silencing of these two genes in tulip repressed the growth of daughter bulbs. Furthermore, exogenous JA treatment promoted tulip bulb growth, whereas the JA biosynthesis inhibitor sodium diethyldithiocarbamate (DIECA) inhibited this process. This study offers supporting evidence for the involvement of tulip TgLOX4 and TgLOX5 in the regulation of daughter bulb growth and development.

Determination of Metal Ions in Pinellia ternata by High Performance Liquid Chromatography-Ultraviolet Detector

In this study, trace amounts of heavy metal ions copper, lead, mercury and cobalt in Pinellia ternata samples were detected by ionic liquid ultrasonic assisted dispersion liquid–liquid microextraction, combined with high performance liquid chromatography-ultraviolet detector. The method used sodium diethyldithiocarbamate as complexing agent and phosphoric acid ionic liquid Trihexyl(tetradecyl) phosphine bis[(2,4,4-trimethyl)] amyl phosphonate (cyclophosphate IL104) as extractant. Methanol: 0.2% phosphoric acid (60:40) was used as mobile phase for separation and UV detector was used for detection, the flow rate was 1 mL/min and the injection volume was 10 μL. In this paper, the effects of sample pH, complexing agent concentration, ultrasonic time, centrifugation time and speed and ionic strength were optimized. Under the optimal conditions (50 μL ionic liquid cyclic phosphine IL104, pH = 5, 0.5% sodium diethyldithiocarbamate, ultrasonic time of 30 min, centrifugation speed of 4000 r/min, 0.1 g NaCl), the recovery of spiked standard was 89.0~98.2%. High performance liquid chromatography had the characteristics of low detection limit, accurate and reliable determination results, high sensitivity, strong specificity and good reproducibility.

Achieving a dendrite-free lithium metal anode through lithiophilic surface modification with sodium diethyldithiocarbamate

Sodium diethyldithiocarbamate (DDTC) monolayer self-assembly on Cu foil can be used to construct a lithiophilic surface modification layer, which can help to achieve a robust and stable SEI and guide homogeneous and dendrite-free Li deposition.

Direct Colorimetric Measurement of Copper with Sodium Diethyldithiocarbamate as the Reagent in the Presence of Ferric Ions

Direct Colorimetric Measurement of Copper with Sodium Diethyldithiocarbamate as the Reagent in the Presence of Ferric Ions