(੭*ˊᵕˋ)੭ try 1ClickPost.com paste text to share free

Graphene-based sieve turns seawater into drinking water

Free Button: Daily News
Free Button: Daily News

  Info

Description

Graphene-based sieve turns seawater into drinking waterA UK-based team of researchers has created a graphene-based sieve capable of removing salt from seawater.The sought-after development could aid the millions of people without ready access to clean drinking water.The promising graphene oxide sieve could be highly efficient at filtering salts, and will now be tested against existing desalination membranes.It has previously been difficult to manufacture graphene-based barriers on an industrial scale.Reporting their results in the journal Nature Nanotechnology, scientists from the University of Manchester, led by Dr Rahul Nair, shows how they solved some of the challenges by using a chemical derivative called graphene oxide.Isolated and characterised by a University of Manchester-led team in 2004, graphene comprises a single layer of carbon atoms arranged in a hexagonal lattice. Its unusual properties, such as extraordinary tensile strength and electrical conductivity, have earmarked it as one of the most promising materials for future applications.But it has been difficult to produce large quantities of single-layer graphene using existing methods, such as chemical vapour deposition (CVD). Current production routes are also quite costly.On the other hand, said Dr Nair, "graphene oxide can be produced by simple oxidation in the lab".He told BBC News: "As an ink or solution, we can compose it on a substrate or porous material. Then we can use it as a membrane."In terms of scalability and the cost of the material, graphene oxide has a potential advantage over single-layered graphene."Clean waterImage copyrightEPAImage captionAccess to clean water remains a major issue for millions of people around the worldOf the single-layer graphene he added: "To make it permeable, you need to drill small holes in the membrane. But if the hole size is larger than one nanometre, the salts go through that hole. You have to make a membrane with a very uniform less-than-one-nanometre hole size to make it useful for desalination. It is a really challenging job."Graphene oxide membranes have already proven their worth in sieving out small nanoparticles, organic molecules and even large salts. But until now, they couldn't be used to filter out common salts, which require even smaller sieves.Previous work had shown that graphene oxide membranes became slightly swollen when immersed in water, allowing smaller salts to flow through the pores along with water molecules.Now, Dr Nair and colleagues demonstrated that placing walls made of epoxy resin (a substance used in coatings and glues) on either side of the graphene oxide membrane was sufficient to stop the expansion.Restricting the swelling in this way also allowed the scientists to tune the properties of the membrane, letting through less or more common salt for example.When common salts are dissolved in water, they always form a "shell" of water molecules around the salt molecules.This allows the tiny capillaries of the graphene-oxide membranes to block the salt from flowing through along with the water."Water molecules can go through individually, but sodium chloride cannot. It always needs the help of the water molecules. The size of the shell of water around the salt is larger than the channel size, so it cannot go through," said Dr Nair.

  Email Video to Friends   Receive Emails for Similar Videos

Email:

  Repeat and Loop Video   Link to Video   Create Short URL  Publish Text About This Video   Share on Facebook, Twitter, and more
  See Recommended Videos For You
Old Cartoons on DVD. Visit and Bookmark: Cool90s.com!

Related

  Graphene-based sieve turns seawater into drinking water   New Invention Filters Salt From Seawater Using Graphene   SAROS Turns Ocean Waves Into Drinking Water   Tapping Into the Ocean With San Diego's Billion Dollar Desalination Plant   #theTrend: This Water purification system changes everything   Coimbatore drinking water canal turns into drainage, residents want clean up | Special report   Bill Gates and Jimmy Drink Poop Water   Desalination: A problematic solution?   To turn human waste into drinking water #AnweshanamWorld   Treatment process turns wastewater into drinking water   Hollister neighborhood turns into water world   UK scientists have built a graphene sieve that converts saltwater into drinking water.   Can Seawater Desalination Solve California's Drought?   US Navy Lab Turns Seawater Into Fuel   Navy Gets Closer to Using Seawater as Fuel   Bill Gates Wants to Turn Poop Into Drinking Water   We Can Use Graphene Oxide to Desalinate Seawater   Desalination to secure water supplies: A problematic solution?   Filtered Toilet Water to Save California's Drought?   State prepares to spend millions on drinking water projects   Scientists Hope To Purify Seawater With A New Graphene Filter   B.Tech Student Turns Into A Successful Farmer || Adilabad District   Drunk man swims to shore after driving car off bridge into water, Clearwater police say   Is the water safe to drink at Detroit Public Schools?   This Surfer Is Getting Clean Water To Millions   1/22/2004 Someone throwing boiling water into sub zero air.   Thanks To This Indian Teen, Saltwater Is Drinkable Now: Here's How It Works   Book TV at Duke University: James Salzman, "Drinking Water: A History"   Sinkhole Opens in Florida Releasing Gallons of Radioactive Water   Mesh Net Harvests Fog for Drinking Water | Video   Drinking Water Crisis in Anantapur District || Women Protest - Watch Exclusive   California builds desalination plant in midst of drought   Surprising facts about bottled water   Water Resources   Machine turns urine into water   Discovering carbon nanotubes: solves the fastest way to turn ocean water into drinking water.   Darjeeling turns into battleground as GJM calls indefinite Bandh   Drinking Water Crisis in Alur, Kurnool District - Watch Exclusive   Drinking water crisis stares at Prakasam District || Sakshi Special - Watch Exclusive   Scientists Make Beer from Urine   Falls business turns plastic into oil   Car crash turns into street fight, witness says   How lead gets into your drinking water   London-returned engineer aka 'Matka Man' provide drinking water to thirst people   Arizona agencies move to permit recycled wastewater use | Cronkite News   Water shortage in Kochi, Drinking water project failed   Report finds Florida drinking water ranks 2nd worst in nation   Solar-Powered Pipe Turns Saltwater Into Drinkable Water | NowThis   Solar-Powered Pipe Turns Saltwater Into Drinkable Water   North Palm River homeowners closer to enjoying fresh drinking water from their homes   Are you drinking the right water?   Arsenic Tainted Water Remains Big Concern For Central California Residents   From waste to water: It's like Brita, for the ocean   Detroit school board passes resolution to test drinking water regularly   This water bottle tricks you into drinking more water   Engineers work on turning sea water into drinking water   Warming Oceans   Despite Govt. measures, water crisis hits city - ANI #News   Despite Govt. measures, water crisis hits city - Karnataka News   California's Drought Fix: Turn Toilet Water Into Tap Water   Clean Water is Ours to Protect   Korean city turning seawater to drinking water 다음 달부터 한국 바닷물 마신다!   Ozark Water Project   NYS Exposed: Does the state do enough to protect children from lead?   How Drinking Water Helps Reduce Dark Circles   How Much Bacteria Is In Your Drinking Water?   DRINKING WATER   Michigan Governor To Testify At House Panel On Flint Water Crisis   Northern California residents among 15 million drinking tainted water   How the Flint water crisis affects residents' daily lives   Is Our Tap Water Safe for Drinking?   Victory for clean water advocates in California   Drinking water   Drinking water contamination - Drainage water mixing with drinking water   Study: Plastic found in 94 percent of drinking water

Popular Today

  Barbican offers escape into art and nature   Plano Youth Volleyball Team Aims For National Title   Expert Explains: How To Ensure Non-COVID Patients Get Proper Treatment Too   Why Are the Elephants Dying in Botswana?   TCPalm's editorial board interview: Stuart City Commission 3   Trump & White House Go to War with...Dr. Fauci   Accusers slam Ghislaine Maxwell at hearing | WNT   Hilton: Reopen schools or give me my school money back   Crime Is SURGING In Democrat-Run Cities; AOC Offers INSANE Justification   Wanted: Robot cooks to reduce spread of COVID-19   President Trump's Speech Angered All the Right People | Steve Deace   07/09/20: Press Secretary Kayleigh McEnany Holds a Briefing   MMSD school board votes to put referenda on ballot   CBN News Medical Reporter Lorie Johnson on COVID-19 Mutation: Could It Make the Virus Less Deadly?   Ann Coulter Weighs-In On President Trump Vs Democrats Over Re-Opening Schools   China-U.S. Trade: Doubts over phase 1, chances for phase 2 / Strain in China-U.S. people exchanges   Ben Shapiro CRUSHES Mayor Bill de Blasio After Violence SURGES In NYC   Couple dress up in astronaut suits to protect themselves from coronavirus pandemic   13-Year-Old Boy Behind Wheel In Deadly Auto-Pedestrian Crash In Grand Prairie   These Toxic YouTubers Probably 'Inspired' Agrima Joshua's Abusers   Wheat Flour Prices Breaks All Records   Turkey Sets Sights on Jerusalem After Converting Hagia Sophia into Mosque   Trump COLLAPSES, Mutters "Obama" When Confronted About Virus   Surging Violence in Democrat Run Cities After Defunding The Police - Donald Trump Campaign Advert   DeVos doubles down on push to reopen schools despite coronavirus surge   FAIL: AOC's INSANE Excuse For RISING CRIME   Billie Eilish Almost Went to THERAPY Over Justin Bieber Obsession   The Washington Redskins Are Changing Their Name to Appease Woke Psychos | Stu Does America   President Trump Delivers a Joint Press Statement with the President of the United Mexican States   Pandemic leading to coin shortage   The Late President Reagan Left Us A Warning Not To Forget Our History   Fannin Fire Department Hydrant Meeting,   Foreign ministers discuss South China Sea, COVID-19 efforts   The Left Says Cancel Culture Isn't Real | The Andrew Klavan Show Ep. 928   Watch again: Priti Patel answers questions in Commons as points-based immigration system unveiled   Texas Sen. Ted Cruz Photographed Not Wearing Mask On Flight, Temporarily Removed It To Drink Coffee   President Trump Signs a Joint Declaration with the President of the United Mexican States (EN)   2am News Headlines | 15 July 2020 | 24 News HD   TCPalm's editorial board interview: Martin County Commission District 1   Anti-Mask Republican Coughs Uncontrollably   Single mother survives COVID-19 and becomes first convalescent plasma donor in US   Crews battle 5 alarm fire at Naval Base San Diego   If We Don't Close Schools For The Flu, Why For COVID? | The Matt Walsh Show Ep. 520   Squaw Valley Ski Resort considers name change   Reporters Have TOTAL MELTDOWN Over Trump's Tweet About Bubble Wallace and NASCAR   Rajasthan Government Crisis | मुख्यमंत्री अशोक गेहलोत यांच्याकडून भाजपावर घणाघात | Marathi News   News 3 Live at Four: July 13, 2020   Florida Sets Single-Day Record for New COVID-19 Cases as Infection Rates Continue to Climb in US   New Law Lets Colorado Workers Earn Paid Sick Leave   Modernize Windows 10 with these FREE tweaks and tools!   View All Today's Popular Videos